Home / 908,650.85-1,253,943.11-521,435.44

Finding the Fourth Proportional to 908,650.85, 1,253,943.11 and 521,435.44

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Solution

The fourth proportional to 908,650.85, 1,253,943.11 and 521,435.44 is: 719,583.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,650.85 : 1,253,943.11 = 521,435.44 : x
  2. Step 2: Convert to fraction form
    908,650.85/1,253,943.11 = 521,435.44/x
  3. Step 3: Cross multiply
    908,650.85x = 1,253,943.11 × 521,435.44
  4. Step 4: Simplify right side
    908,650.85x = 653,850,371,555.78
  5. Step 5: Solve for x
    x = 653,850,371,555.78/908,650.85
  6. Step 6: Final answer
    x = 719,583.73

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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.