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Finding the Fourth Proportional to 425,197.71, 637,811.15 and 225,247.59

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Solution

The fourth proportional to 425,197.71, 637,811.15 and 225,247.59 is: 337,879.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,197.71 : 637,811.15 = 225,247.59 : x
  2. Step 2: Convert to fraction form
    425,197.71/637,811.15 = 225,247.59/x
  3. Step 3: Cross multiply
    425,197.71x = 637,811.15 × 225,247.59
  4. Step 4: Simplify right side
    425,197.71x = 143,665,423,286.39
  5. Step 5: Solve for x
    x = 143,665,423,286.39/425,197.71
  6. Step 6: Final answer
    x = 337,879.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.