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Finding the Fourth Proportional to 488,134.41, 732,719.22 and 432,336.75

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Solution

The fourth proportional to 488,134.41, 732,719.22 and 432,336.75 is: 648,963.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,134.41 : 732,719.22 = 432,336.75 : x
  2. Step 2: Convert to fraction form
    488,134.41/732,719.22 = 432,336.75/x
  3. Step 3: Cross multiply
    488,134.41x = 732,719.22 × 432,336.75
  4. Step 4: Simplify right side
    488,134.41x = 316,781,446,237.34
  5. Step 5: Solve for x
    x = 316,781,446,237.34/488,134.41
  6. Step 6: Final answer
    x = 648,963.56

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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.