Home / 861,323.49-1,188,614.82-479,350.17

Finding the Fourth Proportional to 861,323.49, 1,188,614.82 and 479,350.17

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Solution

The fourth proportional to 861,323.49, 1,188,614.82 and 479,350.17 is: 661,496.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,323.49 : 1,188,614.82 = 479,350.17 : x
  2. Step 2: Convert to fraction form
    861,323.49/1,188,614.82 = 479,350.17/x
  3. Step 3: Cross multiply
    861,323.49x = 1,188,614.82 × 479,350.17
  4. Step 4: Simplify right side
    861,323.49x = 569,762,716,031.52
  5. Step 5: Solve for x
    x = 569,762,716,031.52/861,323.49
  6. Step 6: Final answer
    x = 661,496.78

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Double scale
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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.