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Finding the Fourth Proportional to 574,778.40, 862,167.60 and 375,712.80

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Solution

The fourth proportional to 574,778.40, 862,167.60 and 375,712.80 is: 563,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,778.40 : 862,167.60 = 375,712.80 : x
  2. Step 2: Convert to fraction form
    574,778.40/862,167.60 = 375,712.80/x
  3. Step 3: Cross multiply
    574,778.40x = 862,167.60 × 375,712.80
  4. Step 4: Simplify right side
    574,778.40x = 323,927,403,065.28
  5. Step 5: Solve for x
    x = 323,927,403,065.28/574,778.40
  6. Step 6: Final answer
    x = 563,569.20

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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.