Home / 866,213.19-1,195,381.77-479,008.47

Finding the Fourth Proportional to 866,213.19, 1,195,381.77 and 479,008.47

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Solution

The fourth proportional to 866,213.19, 1,195,381.77 and 479,008.47 is: 661,035.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,213.19 : 1,195,381.77 = 479,008.47 : x
  2. Step 2: Convert to fraction form
    866,213.19/1,195,381.77 = 479,008.47/x
  3. Step 3: Cross multiply
    866,213.19x = 1,195,381.77 × 479,008.47
  4. Step 4: Simplify right side
    866,213.19x = 572,597,992,713.59
  5. Step 5: Solve for x
    x = 572,597,992,713.59/866,213.19
  6. Step 6: Final answer
    x = 661,035.87

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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.