Home / 769,266.80-1,153,900.20-556,690.40

Finding the Fourth Proportional to 769,266.80, 1,153,900.20 and 556,690.40

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Solution

The fourth proportional to 769,266.80, 1,153,900.20 and 556,690.40 is: 835,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,266.80 : 1,153,900.20 = 556,690.40 : x
  2. Step 2: Convert to fraction form
    769,266.80/1,153,900.20 = 556,690.40/x
  3. Step 3: Cross multiply
    769,266.80x = 1,153,900.20 × 556,690.40
  4. Step 4: Simplify right side
    769,266.80x = 642,365,163,898.08
  5. Step 5: Solve for x
    x = 642,365,163,898.08/769,266.80
  6. Step 6: Final answer
    x = 835,035.60

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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.