Home / 1,266,913,228.80-1,900,369,843.20-647,040,446.40

Finding the Fourth Proportional to 1,266,913,228.80, 1,900,369,843.20 and 647,040,446.40

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Solution

The fourth proportional to 1,266,913,228.80, 1,900,369,843.20 and 647,040,446.40 is: 970,560,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,913,228.80 : 1,900,369,843.20 = 647,040,446.40 : x
  2. Step 2: Convert to fraction form
    1,266,913,228.80/1,900,369,843.20 = 647,040,446.40/x
  3. Step 3: Cross multiply
    1,266,913,228.80x = 1,900,369,843.20 × 647,040,446.40
  4. Step 4: Simplify right side
    1,266,913,228.80x = 1,229,616,151,669,225,984
  5. Step 5: Solve for x
    x = 1,229,616,151,669,225,984/1,266,913,228.80
  6. Step 6: Final answer
    x = 970,560,669.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.