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Finding the Fourth Proportional to 721,896.66, 996,439.32 and 416,177.28

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Solution

The fourth proportional to 721,896.66, 996,439.32 and 416,177.28 is: 574,452.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,896.66 : 996,439.32 = 416,177.28 : x
  2. Step 2: Convert to fraction form
    721,896.66/996,439.32 = 416,177.28/x
  3. Step 3: Cross multiply
    721,896.66x = 996,439.32 × 416,177.28
  4. Step 4: Simplify right side
    721,896.66x = 414,695,405,882.65
  5. Step 5: Solve for x
    x = 414,695,405,882.65/721,896.66
  6. Step 6: Final answer
    x = 574,452.59

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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.