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Finding the Fourth Proportional to 552,339.64, 762,071.48 and 331,487.22

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Solution

The fourth proportional to 552,339.64, 762,071.48 and 331,487.22 is: 457,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,339.64 : 762,071.48 = 331,487.22 : x
  2. Step 2: Convert to fraction form
    552,339.64/762,071.48 = 331,487.22/x
  3. Step 3: Cross multiply
    552,339.64x = 762,071.48 × 331,487.22
  4. Step 4: Simplify right side
    552,339.64x = 252,616,956,346.49
  5. Step 5: Solve for x
    x = 252,616,956,346.49/552,339.64
  6. Step 6: Final answer
    x = 457,358.01

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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.