Home / 409,546.38-614,278.05-109,988.04

Finding the Fourth Proportional to 409,546.38, 614,278.05 and 109,988.04

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Solution

The fourth proportional to 409,546.38, 614,278.05 and 109,988.04 is: 164,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,546.38 : 614,278.05 = 109,988.04 : x
  2. Step 2: Convert to fraction form
    409,546.38/614,278.05 = 109,988.04/x
  3. Step 3: Cross multiply
    409,546.38x = 614,278.05 × 109,988.04
  4. Step 4: Simplify right side
    409,546.38x = 67,563,238,734.52
  5. Step 5: Solve for x
    x = 67,563,238,734.52/409,546.38
  6. Step 6: Final answer
    x = 164,970.91

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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.