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Finding the Fourth Proportional to 616,327.20, 924,490.80 and 574,855.20

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Solution

The fourth proportional to 616,327.20, 924,490.80 and 574,855.20 is: 862,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,327.20 : 924,490.80 = 574,855.20 : x
  2. Step 2: Convert to fraction form
    616,327.20/924,490.80 = 574,855.20/x
  3. Step 3: Cross multiply
    616,327.20x = 924,490.80 × 574,855.20
  4. Step 4: Simplify right side
    616,327.20x = 531,448,343,732.16
  5. Step 5: Solve for x
    x = 531,448,343,732.16/616,327.20
  6. Step 6: Final answer
    x = 862,282.80

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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.