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Finding the Fourth Proportional to 488,443.60, 732,665.40 and 454,229.20

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Solution

The fourth proportional to 488,443.60, 732,665.40 and 454,229.20 is: 681,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,443.60 : 732,665.40 = 454,229.20 : x
  2. Step 2: Convert to fraction form
    488,443.60/732,665.40 = 454,229.20/x
  3. Step 3: Cross multiply
    488,443.60x = 732,665.40 × 454,229.20
  4. Step 4: Simplify right side
    488,443.60x = 332,798,018,509.68
  5. Step 5: Solve for x
    x = 332,798,018,509.68/488,443.60
  6. Step 6: Final answer
    x = 681,343.80

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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.