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Finding the Fourth Proportional to 488,131.92, 732,715.45 and 432,334.26

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Solution

The fourth proportional to 488,131.92, 732,715.45 and 432,334.26 is: 648,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,131.92 : 732,715.45 = 432,334.26 : x
  2. Step 2: Convert to fraction form
    488,131.92/732,715.45 = 432,334.26/x
  3. Step 3: Cross multiply
    488,131.92x = 732,715.45 × 432,334.26
  4. Step 4: Simplify right side
    488,131.92x = 316,777,991,866.32
  5. Step 5: Solve for x
    x = 316,777,991,866.32/488,131.92
  6. Step 6: Final answer
    x = 648,959.80

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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.