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Finding the Fourth Proportional to 552,572.82, 762,549.27 and 310,855.50

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Solution

The fourth proportional to 552,572.82, 762,549.27 and 310,855.50 is: 428,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,572.82 : 762,549.27 = 310,855.50 : x
  2. Step 2: Convert to fraction form
    552,572.82/762,549.27 = 310,855.50/x
  3. Step 3: Cross multiply
    552,572.82x = 762,549.27 × 310,855.50
  4. Step 4: Simplify right side
    552,572.82x = 237,042,634,600.49
  5. Step 5: Solve for x
    x = 237,042,634,600.49/552,572.82
  6. Step 6: Final answer
    x = 428,979.90

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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.