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Finding the Fourth Proportional to 615,916.80, 924,566.40 and 476,294.40

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Solution

The fourth proportional to 615,916.80, 924,566.40 and 476,294.40 is: 714,976.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,916.80 : 924,566.40 = 476,294.40 : x
  2. Step 2: Convert to fraction form
    615,916.80/924,566.40 = 476,294.40/x
  3. Step 3: Cross multiply
    615,916.80x = 924,566.40 × 476,294.40
  4. Step 4: Simplify right side
    615,916.80x = 440,365,798,748.16
  5. Step 5: Solve for x
    x = 440,365,798,748.16/615,916.80
  6. Step 6: Final answer
    x = 714,976.11

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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.