Home / 454,815.90-681,677.10-188,439.30

Finding the Fourth Proportional to 454,815.90, 681,677.10 and 188,439.30

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Solution

The fourth proportional to 454,815.90, 681,677.10 and 188,439.30 is: 282,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,815.90 : 681,677.10 = 188,439.30 : x
  2. Step 2: Convert to fraction form
    454,815.90/681,677.10 = 188,439.30/x
  3. Step 3: Cross multiply
    454,815.90x = 681,677.10 × 188,439.30
  4. Step 4: Simplify right side
    454,815.90x = 128,454,755,550.03
  5. Step 5: Solve for x
    x = 128,454,755,550.03/454,815.90
  6. Step 6: Final answer
    x = 282,432.42

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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.