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Finding the Fourth Proportional to 435,373.12, 653,247.60 and 225,158.68

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Solution

The fourth proportional to 435,373.12, 653,247.60 and 225,158.68 is: 337,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,373.12 : 653,247.60 = 225,158.68 : x
  2. Step 2: Convert to fraction form
    435,373.12/653,247.60 = 225,158.68/x
  3. Step 3: Cross multiply
    435,373.12x = 653,247.60 × 225,158.68
  4. Step 4: Simplify right side
    435,373.12x = 147,084,367,329.17
  5. Step 5: Solve for x
    x = 147,084,367,329.17/435,373.12
  6. Step 6: Final answer
    x = 337,835.21

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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.