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Finding the Fourth Proportional to 591,489.20, 887,233.80 and 402,532.40

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Solution

The fourth proportional to 591,489.20, 887,233.80 and 402,532.40 is: 603,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,489.20 : 887,233.80 = 402,532.40 : x
  2. Step 2: Convert to fraction form
    591,489.20/887,233.80 = 402,532.40/x
  3. Step 3: Cross multiply
    591,489.20x = 887,233.80 × 402,532.40
  4. Step 4: Simplify right side
    591,489.20x = 357,140,350,875.12
  5. Step 5: Solve for x
    x = 357,140,350,875.12/591,489.20
  6. Step 6: Final answer
    x = 603,798.60

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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.