Home / 625,275.47-863,177.66-418,899.21

Finding the Fourth Proportional to 625,275.47, 863,177.66 and 418,899.21

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Solution

The fourth proportional to 625,275.47, 863,177.66 and 418,899.21 is: 578,280.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,275.47 : 863,177.66 = 418,899.21 : x
  2. Step 2: Convert to fraction form
    625,275.47/863,177.66 = 418,899.21/x
  3. Step 3: Cross multiply
    625,275.47x = 863,177.66 × 418,899.21
  4. Step 4: Simplify right side
    625,275.47x = 361,584,439,863.65
  5. Step 5: Solve for x
    x = 361,584,439,863.65/625,275.47
  6. Step 6: Final answer
    x = 578,280.23

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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.