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Finding the Fourth Proportional to 384,002.40, 574,691.40 and 336,763.20

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Solution

The fourth proportional to 384,002.40, 574,691.40 and 336,763.20 is: 503,994.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,002.40 : 574,691.40 = 336,763.20 : x
  2. Step 2: Convert to fraction form
    384,002.40/574,691.40 = 336,763.20/x
  3. Step 3: Cross multiply
    384,002.40x = 574,691.40 × 336,763.20
  4. Step 4: Simplify right side
    384,002.40x = 193,534,914,876.48
  5. Step 5: Solve for x
    x = 193,534,914,876.48/384,002.40
  6. Step 6: Final answer
    x = 503,994.02

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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.