Home / 861,279.76-1,187,334.30-605,838.16

Finding the Fourth Proportional to 861,279.76, 1,187,334.30 and 605,838.16

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Solution

The fourth proportional to 861,279.76, 1,187,334.30 and 605,838.16 is: 835,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,279.76 : 1,187,334.30 = 605,838.16 : x
  2. Step 2: Convert to fraction form
    861,279.76/1,187,334.30 = 605,838.16/x
  3. Step 3: Cross multiply
    861,279.76x = 1,187,334.30 × 605,838.16
  4. Step 4: Simplify right side
    861,279.76x = 719,332,427,616.89
  5. Step 5: Solve for x
    x = 719,332,427,616.89/861,279.76
  6. Step 6: Final answer
    x = 835,190.21

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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.