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Finding the Fourth Proportional to 425,790.78, 587,564.40 and 244,375.02

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Solution

The fourth proportional to 425,790.78, 587,564.40 and 244,375.02 is: 337,222.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,790.78 : 587,564.40 = 244,375.02 : x
  2. Step 2: Convert to fraction form
    425,790.78/587,564.40 = 244,375.02/x
  3. Step 3: Cross multiply
    425,790.78x = 587,564.40 × 244,375.02
  4. Step 4: Simplify right side
    425,790.78x = 143,586,062,001.29
  5. Step 5: Solve for x
    x = 143,586,062,001.29/425,790.78
  6. Step 6: Final answer
    x = 337,222.10

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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.