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Finding the Fourth Proportional to 384,059.60, 576,089.40 and 251,349.20

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Solution

The fourth proportional to 384,059.60, 576,089.40 and 251,349.20 is: 377,023.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,059.60 : 576,089.40 = 251,349.20 : x
  2. Step 2: Convert to fraction form
    384,059.60/576,089.40 = 251,349.20/x
  3. Step 3: Cross multiply
    384,059.60x = 576,089.40 × 251,349.20
  4. Step 4: Simplify right side
    384,059.60x = 144,799,609,818.48
  5. Step 5: Solve for x
    x = 144,799,609,818.48/384,059.60
  6. Step 6: Final answer
    x = 377,023.80

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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.