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Finding the Fourth Proportional to 372,604.31, 557,189.66 and 276,722.58

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Solution

The fourth proportional to 372,604.31, 557,189.66 and 276,722.58 is: 413,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,604.31 : 557,189.66 = 276,722.58 : x
  2. Step 2: Convert to fraction form
    372,604.31/557,189.66 = 276,722.58/x
  3. Step 3: Cross multiply
    372,604.31x = 557,189.66 × 276,722.58
  4. Step 4: Simplify right side
    372,604.31x = 154,186,960,264.52
  5. Step 5: Solve for x
    x = 154,186,960,264.52/372,604.31
  6. Step 6: Final answer
    x = 413,808.85

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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.