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Finding the Fourth Proportional to 617,809.98, 924,967.80 and 392,612.16

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Solution

The fourth proportional to 617,809.98, 924,967.80 and 392,612.16 is: 587,807.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,809.98 : 924,967.80 = 392,612.16 : x
  2. Step 2: Convert to fraction form
    617,809.98/924,967.80 = 392,612.16/x
  3. Step 3: Cross multiply
    617,809.98x = 924,967.80 × 392,612.16
  4. Step 4: Simplify right side
    617,809.98x = 363,153,605,888.45
  5. Step 5: Solve for x
    x = 363,153,605,888.45/617,809.98
  6. Step 6: Final answer
    x = 587,807.93

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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.