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Finding the Fourth Proportional to 552,586.65, 762,568.28 and 310,869.15

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Solution

The fourth proportional to 552,586.65, 762,568.28 and 310,869.15 is: 428,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,586.65 : 762,568.28 = 310,869.15 : x
  2. Step 2: Convert to fraction form
    552,586.65/762,568.28 = 310,869.15/x
  3. Step 3: Cross multiply
    552,586.65x = 762,568.28 × 310,869.15
  4. Step 4: Simplify right side
    552,586.65x = 237,058,952,631.98
  5. Step 5: Solve for x
    x = 237,058,952,631.98/552,586.65
  6. Step 6: Final answer
    x = 428,998.70

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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.