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Finding the Fourth Proportional to 617,806.98, 924,963.30 and 392,609.16

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Solution

The fourth proportional to 617,806.98, 924,963.30 and 392,609.16 is: 587,803.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,806.98 : 924,963.30 = 392,609.16 : x
  2. Step 2: Convert to fraction form
    617,806.98/924,963.30 = 392,609.16/x
  3. Step 3: Cross multiply
    617,806.98x = 924,963.30 × 392,609.16
  4. Step 4: Simplify right side
    617,806.98x = 363,149,064,243.83
  5. Step 5: Solve for x
    x = 363,149,064,243.83/617,806.98
  6. Step 6: Final answer
    x = 587,803.43

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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.