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Finding the Fourth Proportional to 410,079.13, 615,326.16 and 276,679.03

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Solution

The fourth proportional to 410,079.13, 615,326.16 and 276,679.03 is: 415,158.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,079.13 : 615,326.16 = 276,679.03 : x
  2. Step 2: Convert to fraction form
    410,079.13/615,326.16 = 276,679.03/x
  3. Step 3: Cross multiply
    410,079.13x = 615,326.16 × 276,679.03
  4. Step 4: Simplify right side
    410,079.13x = 170,247,845,082.43
  5. Step 5: Solve for x
    x = 170,247,845,082.43/410,079.13
  6. Step 6: Final answer
    x = 415,158.52

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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.