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Finding the Fourth Proportional to 488,132.66, 732,716.58 and 432,335

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Solution

The fourth proportional to 488,132.66, 732,716.58 and 432,335 is: 648,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,132.66 : 732,716.58 = 432,335 : x
  2. Step 2: Convert to fraction form
    488,132.66/732,716.58 = 432,335/x
  3. Step 3: Cross multiply
    488,132.66x = 732,716.58 × 432,335
  4. Step 4: Simplify right side
    488,132.66x = 316,779,022,614.30
  5. Step 5: Solve for x
    x = 316,779,022,614.30/488,132.66
  6. Step 6: Final answer
    x = 648,960.93

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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.