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Finding the Fourth Proportional to 438,843.90, 605,601.12 and 237,639.90

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Solution

The fourth proportional to 438,843.90, 605,601.12 and 237,639.90 is: 327,941.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,843.90 : 605,601.12 = 237,639.90 : x
  2. Step 2: Convert to fraction form
    438,843.90/605,601.12 = 237,639.90/x
  3. Step 3: Cross multiply
    438,843.90x = 605,601.12 × 237,639.90
  4. Step 4: Simplify right side
    438,843.90x = 143,914,989,596.69
  5. Step 5: Solve for x
    x = 143,914,989,596.69/438,843.90
  6. Step 6: Final answer
    x = 327,941.19

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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.