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Finding the Fourth Proportional to 374,351.64, 561,789.90 and 216,362.76

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Solution

The fourth proportional to 374,351.64, 561,789.90 and 216,362.76 is: 324,695.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,351.64 : 561,789.90 = 216,362.76 : x
  2. Step 2: Convert to fraction form
    374,351.64/561,789.90 = 216,362.76/x
  3. Step 3: Cross multiply
    374,351.64x = 561,789.90 × 216,362.76
  4. Step 4: Simplify right side
    374,351.64x = 121,550,413,304.12
  5. Step 5: Solve for x
    x = 121,550,413,304.12/374,351.64
  6. Step 6: Final answer
    x = 324,695.82

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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.