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Finding the Fourth Proportional to 552,463.68, 762,392.22 and 310,746.42

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Solution

The fourth proportional to 552,463.68, 762,392.22 and 310,746.42 is: 428,825.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,463.68 : 762,392.22 = 310,746.42 : x
  2. Step 2: Convert to fraction form
    552,463.68/762,392.22 = 310,746.42/x
  3. Step 3: Cross multiply
    552,463.68x = 762,392.22 × 310,746.42
  4. Step 4: Simplify right side
    552,463.68x = 236,910,653,000.85
  5. Step 5: Solve for x
    x = 236,910,653,000.85/552,463.68
  6. Step 6: Final answer
    x = 428,825.75

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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.