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Finding the Fourth Proportional to 384,307.20, 574,905.60 and 337,651.20

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Solution

The fourth proportional to 384,307.20, 574,905.60 and 337,651.20 is: 505,110.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,307.20 : 574,905.60 = 337,651.20 : x
  2. Step 2: Convert to fraction form
    384,307.20/574,905.60 = 337,651.20/x
  3. Step 3: Cross multiply
    384,307.20x = 574,905.60 × 337,651.20
  4. Step 4: Simplify right side
    384,307.20x = 194,117,565,726.72
  5. Step 5: Solve for x
    x = 194,117,565,726.72/384,307.20
  6. Step 6: Final answer
    x = 505,110.41

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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.