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Finding the Fourth Proportional to 431,920.68, 648,068.14 and 232,007.82

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Solution

The fourth proportional to 431,920.68, 648,068.14 and 232,007.82 is: 348,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,920.68 : 648,068.14 = 232,007.82 : x
  2. Step 2: Convert to fraction form
    431,920.68/648,068.14 = 232,007.82/x
  3. Step 3: Cross multiply
    431,920.68x = 648,068.14 × 232,007.82
  4. Step 4: Simplify right side
    431,920.68x = 150,356,876,372.86
  5. Step 5: Solve for x
    x = 150,356,876,372.86/431,920.68
  6. Step 6: Final answer
    x = 348,112.24

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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.