Home / 438,934.73-658,402.10-123,391.64

Finding the Fourth Proportional to 438,934.73, 658,402.10 and 123,391.64

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Solution

The fourth proportional to 438,934.73, 658,402.10 and 123,391.64 is: 185,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,934.73 : 658,402.10 = 123,391.64 : x
  2. Step 2: Convert to fraction form
    438,934.73/658,402.10 = 123,391.64/x
  3. Step 3: Cross multiply
    438,934.73x = 658,402.10 × 123,391.64
  4. Step 4: Simplify right side
    438,934.73x = 81,241,310,989.48
  5. Step 5: Solve for x
    x = 81,241,310,989.48/438,934.73
  6. Step 6: Final answer
    x = 185,087.45

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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.