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Finding the Fourth Proportional to 425,991.64, 587,865.18 and 235,013.08

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Solution

The fourth proportional to 425,991.64, 587,865.18 and 235,013.08 is: 324,316.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,991.64 : 587,865.18 = 235,013.08 : x
  2. Step 2: Convert to fraction form
    425,991.64/587,865.18 = 235,013.08/x
  3. Step 3: Cross multiply
    425,991.64x = 587,865.18 × 235,013.08
  4. Step 4: Simplify right side
    425,991.64x = 138,156,006,576.55
  5. Step 5: Solve for x
    x = 138,156,006,576.55/425,991.64
  6. Step 6: Final answer
    x = 324,316.24

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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.