Home / 641,155.27-884,794.90-354,694.72

Finding the Fourth Proportional to 641,155.27, 884,794.90 and 354,694.72

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Solution

The fourth proportional to 641,155.27, 884,794.90 and 354,694.72 is: 489,479.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,155.27 : 884,794.90 = 354,694.72 : x
  2. Step 2: Convert to fraction form
    641,155.27/884,794.90 = 354,694.72/x
  3. Step 3: Cross multiply
    641,155.27x = 884,794.90 × 354,694.72
  4. Step 4: Simplify right side
    641,155.27x = 313,832,074,888.95
  5. Step 5: Solve for x
    x = 313,832,074,888.95/641,155.27
  6. Step 6: Final answer
    x = 489,479.06

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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.