Home / 1,189,900.58-1,785,560.03-431,801.20

Finding the Fourth Proportional to 1,189,900.58, 1,785,560.03 and 431,801.20

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Solution

The fourth proportional to 1,189,900.58, 1,785,560.03 and 431,801.20 is: 647,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,900.58 : 1,785,560.03 = 431,801.20 : x
  2. Step 2: Convert to fraction form
    1,189,900.58/1,785,560.03 = 431,801.20/x
  3. Step 3: Cross multiply
    1,189,900.58x = 1,785,560.03 × 431,801.20
  4. Step 4: Simplify right side
    1,189,900.58x = 771,006,952,539.23
  5. Step 5: Solve for x
    x = 771,006,952,539.23/1,189,900.58
  6. Step 6: Final answer
    x = 647,959.14

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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.