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Finding the Fourth Proportional to 556,324.61, 767,826.26 and 326,881.85

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Solution

The fourth proportional to 556,324.61, 767,826.26 and 326,881.85 is: 451,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,324.61 : 767,826.26 = 326,881.85 : x
  2. Step 2: Convert to fraction form
    556,324.61/767,826.26 = 326,881.85/x
  3. Step 3: Cross multiply
    556,324.61x = 767,826.26 × 326,881.85
  4. Step 4: Simplify right side
    556,324.61x = 250,988,471,084.15
  5. Step 5: Solve for x
    x = 250,988,471,084.15/556,324.61
  6. Step 6: Final answer
    x = 451,154.71

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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.