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Finding the Fourth Proportional to 552,655.04, 762,658.56 and 307,635.91

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Solution

The fourth proportional to 552,655.04, 762,658.56 and 307,635.91 is: 424,534.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,655.04 : 762,658.56 = 307,635.91 : x
  2. Step 2: Convert to fraction form
    552,655.04/762,658.56 = 307,635.91/x
  3. Step 3: Cross multiply
    552,655.04x = 762,658.56 × 307,635.91
  4. Step 4: Simplify right side
    552,655.04x = 234,621,161,078.21
  5. Step 5: Solve for x
    x = 234,621,161,078.21/552,655.04
  6. Step 6: Final answer
    x = 424,534.56

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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.