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Finding the Fourth Proportional to 556,324.87, 767,826.61 and 326,882.11

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Solution

The fourth proportional to 556,324.87, 767,826.61 and 326,882.11 is: 451,155.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,324.87 : 767,826.61 = 326,882.11 : x
  2. Step 2: Convert to fraction form
    556,324.87/767,826.61 = 326,882.11/x
  3. Step 3: Cross multiply
    556,324.87x = 767,826.61 × 326,882.11
  4. Step 4: Simplify right side
    556,324.87x = 250,988,776,917.40
  5. Step 5: Solve for x
    x = 250,988,776,917.40/556,324.87
  6. Step 6: Final answer
    x = 451,155.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.