Home / 641,444.28-885,179.82-354,947.16

Finding the Fourth Proportional to 641,444.28, 885,179.82 and 354,947.16

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Solution

The fourth proportional to 641,444.28, 885,179.82 and 354,947.16 is: 489,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,444.28 : 885,179.82 = 354,947.16 : x
  2. Step 2: Convert to fraction form
    641,444.28/885,179.82 = 354,947.16/x
  3. Step 3: Cross multiply
    641,444.28x = 885,179.82 × 354,947.16
  4. Step 4: Simplify right side
    641,444.28x = 314,192,063,198.31
  5. Step 5: Solve for x
    x = 314,192,063,198.31/641,444.28
  6. Step 6: Final answer
    x = 489,819.73

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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.