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Finding the Fourth Proportional to 665,718.80, 998,479.76 and 244,896.24

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Solution

The fourth proportional to 665,718.80, 998,479.76 and 244,896.24 is: 367,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,718.80 : 998,479.76 = 244,896.24 : x
  2. Step 2: Convert to fraction form
    665,718.80/998,479.76 = 244,896.24/x
  3. Step 3: Cross multiply
    665,718.80x = 998,479.76 × 244,896.24
  4. Step 4: Simplify right side
    665,718.80x = 244,523,938,940.10
  5. Step 5: Solve for x
    x = 244,523,938,940.10/665,718.80
  6. Step 6: Final answer
    x = 367,308.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.