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Finding the Fourth Proportional to 307,553.70, 461,330.55 and 231,774.15

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Solution

The fourth proportional to 307,553.70, 461,330.55 and 231,774.15 is: 347,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,553.70 : 461,330.55 = 231,774.15 : x
  2. Step 2: Convert to fraction form
    307,553.70/461,330.55 = 231,774.15/x
  3. Step 3: Cross multiply
    307,553.70x = 461,330.55 × 231,774.15
  4. Step 4: Simplify right side
    307,553.70x = 106,924,496,095.28
  5. Step 5: Solve for x
    x = 106,924,496,095.28/307,553.70
  6. Step 6: Final answer
    x = 347,661.23

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1.5x scale

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.