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Finding the Fourth Proportional to 552,553.28, 762,522.44 and 310,836.04

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Solution

The fourth proportional to 552,553.28, 762,522.44 and 310,836.04 is: 428,953.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,553.28 : 762,522.44 = 310,836.04 : x
  2. Step 2: Convert to fraction form
    552,553.28/762,522.44 = 310,836.04/x
  3. Step 3: Cross multiply
    552,553.28x = 762,522.44 × 310,836.04
  4. Step 4: Simplify right side
    552,553.28x = 237,019,452,200.25
  5. Step 5: Solve for x
    x = 237,019,452,200.25/552,553.28
  6. Step 6: Final answer
    x = 428,953.12

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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.