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Finding the Fourth Proportional to 675,720.78, 932,454.48 and 369,736.12

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Solution

The fourth proportional to 675,720.78, 932,454.48 and 369,736.12 is: 510,213.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,720.78 : 932,454.48 = 369,736.12 : x
  2. Step 2: Convert to fraction form
    675,720.78/932,454.48 = 369,736.12/x
  3. Step 3: Cross multiply
    675,720.78x = 932,454.48 × 369,736.12
  4. Step 4: Simplify right side
    675,720.78x = 344,762,101,511.82
  5. Step 5: Solve for x
    x = 344,762,101,511.82/675,720.78
  6. Step 6: Final answer
    x = 510,213.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.