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Finding the Fourth Proportional to 532,813.20, 799,219.80 and 474,752.40

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Solution

The fourth proportional to 532,813.20, 799,219.80 and 474,752.40 is: 712,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,813.20 : 799,219.80 = 474,752.40 : x
  2. Step 2: Convert to fraction form
    532,813.20/799,219.80 = 474,752.40/x
  3. Step 3: Cross multiply
    532,813.20x = 799,219.80 × 474,752.40
  4. Step 4: Simplify right side
    532,813.20x = 379,431,518,177.52
  5. Step 5: Solve for x
    x = 379,431,518,177.52/532,813.20
  6. Step 6: Final answer
    x = 712,128.60

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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.