Home / 1,211,680.11-1,672,050.20-667,814.22

Finding the Fourth Proportional to 1,211,680.11, 1,672,050.20 and 667,814.22

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Solution

The fourth proportional to 1,211,680.11, 1,672,050.20 and 667,814.22 is: 921,545.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,680.11 : 1,672,050.20 = 667,814.22 : x
  2. Step 2: Convert to fraction form
    1,211,680.11/1,672,050.20 = 667,814.22/x
  3. Step 3: Cross multiply
    1,211,680.11x = 1,672,050.20 × 667,814.22
  4. Step 4: Simplify right side
    1,211,680.11x = 1,116,618,896,774.77
  5. Step 5: Solve for x
    x = 1,116,618,896,774.77/1,211,680.11
  6. Step 6: Final answer
    x = 921,545.95

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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.