Home / 861,261.17-1,188,592.82-479,287.95

Finding the Fourth Proportional to 861,261.17, 1,188,592.82 and 479,287.95

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Solution

The fourth proportional to 861,261.17, 1,188,592.82 and 479,287.95 is: 661,446.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,261.17 : 1,188,592.82 = 479,287.95 : x
  2. Step 2: Convert to fraction form
    861,261.17/1,188,592.82 = 479,287.95/x
  3. Step 3: Cross multiply
    861,261.17x = 1,188,592.82 × 479,287.95
  4. Step 4: Simplify right side
    861,261.17x = 569,678,217,280.74
  5. Step 5: Solve for x
    x = 569,678,217,280.74/861,261.17
  6. Step 6: Final answer
    x = 661,446.53

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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.