Home / 518,811.47-715,961.01-292,456.97

Finding the Fourth Proportional to 518,811.47, 715,961.01 and 292,456.97

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Solution

The fourth proportional to 518,811.47, 715,961.01 and 292,456.97 is: 403,591.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,811.47 : 715,961.01 = 292,456.97 : x
  2. Step 2: Convert to fraction form
    518,811.47/715,961.01 = 292,456.97/x
  3. Step 3: Cross multiply
    518,811.47x = 715,961.01 × 292,456.97
  4. Step 4: Simplify right side
    518,811.47x = 209,387,784,042.94
  5. Step 5: Solve for x
    x = 209,387,784,042.94/518,811.47
  6. Step 6: Final answer
    x = 403,591.28

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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.