Home / 866,385.28-1,195,562.46-479,177.56

Finding the Fourth Proportional to 866,385.28, 1,195,562.46 and 479,177.56

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Solution

The fourth proportional to 866,385.28, 1,195,562.46 and 479,177.56 is: 661,237.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,385.28 : 1,195,562.46 = 479,177.56 : x
  2. Step 2: Convert to fraction form
    866,385.28/1,195,562.46 = 479,177.56/x
  3. Step 3: Cross multiply
    866,385.28x = 1,195,562.46 × 479,177.56
  4. Step 4: Simplify right side
    866,385.28x = 572,886,702,410.40
  5. Step 5: Solve for x
    x = 572,886,702,410.40/866,385.28
  6. Step 6: Final answer
    x = 661,237.81

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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.