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Finding the Fourth Proportional to 425,711.55, 587,624.30 and 253,683.48

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Solution

The fourth proportional to 425,711.55, 587,624.30 and 253,683.48 is: 350,168.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,711.55 : 587,624.30 = 253,683.48 : x
  2. Step 2: Convert to fraction form
    425,711.55/587,624.30 = 253,683.48/x
  3. Step 3: Cross multiply
    425,711.55x = 587,624.30 × 253,683.48
  4. Step 4: Simplify right side
    425,711.55x = 149,070,573,884.56
  5. Step 5: Solve for x
    x = 149,070,573,884.56/425,711.55
  6. Step 6: Final answer
    x = 350,168.03

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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.