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Finding the Fourth Proportional to 519,766.70, 779,701.08 and 216,098.11

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Solution

The fourth proportional to 519,766.70, 779,701.08 and 216,098.11 is: 324,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,766.70 : 779,701.08 = 216,098.11 : x
  2. Step 2: Convert to fraction form
    519,766.70/779,701.08 = 216,098.11/x
  3. Step 3: Cross multiply
    519,766.70x = 779,701.08 × 216,098.11
  4. Step 4: Simplify right side
    519,766.70x = 168,491,925,854.45
  5. Step 5: Solve for x
    x = 168,491,925,854.45/519,766.70
  6. Step 6: Final answer
    x = 324,168.37

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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.