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Finding the Fourth Proportional to 665,888.78, 998,842.42 and 216,612.02

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Solution

The fourth proportional to 665,888.78, 998,842.42 and 216,612.02 is: 324,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,888.78 : 998,842.42 = 216,612.02 : x
  2. Step 2: Convert to fraction form
    665,888.78/998,842.42 = 216,612.02/x
  3. Step 3: Cross multiply
    665,888.78x = 998,842.42 × 216,612.02
  4. Step 4: Simplify right side
    665,888.78x = 216,361,277,025.76
  5. Step 5: Solve for x
    x = 216,361,277,025.76/665,888.78
  6. Step 6: Final answer
    x = 324,921.04

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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.