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Finding the Fourth Proportional to 552,530.88, 762,921.72 and 431,462.16

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Solution

The fourth proportional to 552,530.88, 762,921.72 and 431,462.16 is: 595,752.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,530.88 : 762,921.72 = 431,462.16 : x
  2. Step 2: Convert to fraction form
    552,530.88/762,921.72 = 431,462.16/x
  3. Step 3: Cross multiply
    552,530.88x = 762,921.72 × 431,462.16
  4. Step 4: Simplify right side
    552,530.88x = 329,171,853,222.12
  5. Step 5: Solve for x
    x = 329,171,853,222.12/552,530.88
  6. Step 6: Final answer
    x = 595,752.86

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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.