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Finding the Fourth Proportional to 307,446.90, 424,115.37 and 250,150.29

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Solution

The fourth proportional to 307,446.90, 424,115.37 and 250,150.29 is: 345,076.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,446.90 : 424,115.37 = 250,150.29 : x
  2. Step 2: Convert to fraction form
    307,446.90/424,115.37 = 250,150.29/x
  3. Step 3: Cross multiply
    307,446.90x = 424,115.37 × 250,150.29
  4. Step 4: Simplify right side
    307,446.90x = 106,092,582,798.96
  5. Step 5: Solve for x
    x = 106,092,582,798.96/307,446.90
  6. Step 6: Final answer
    x = 345,076.12

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1.5x scale

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.