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Finding the Fourth Proportional to 556,081.98, 834,115.18 and 219,125.56

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Solution

The fourth proportional to 556,081.98, 834,115.18 and 219,125.56 is: 328,685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,081.98 : 834,115.18 = 219,125.56 : x
  2. Step 2: Convert to fraction form
    556,081.98/834,115.18 = 219,125.56/x
  3. Step 3: Cross multiply
    556,081.98x = 834,115.18 × 219,125.56
  4. Step 4: Simplify right side
    556,081.98x = 182,775,955,922.00
  5. Step 5: Solve for x
    x = 182,775,955,922.00/556,081.98
  6. Step 6: Final answer
    x = 328,685.27

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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.