Home / 1,385,715.11-1,912,266.66-773,861.39

Finding the Fourth Proportional to 1,385,715.11, 1,912,266.66 and 773,861.39

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Solution

The fourth proportional to 1,385,715.11, 1,912,266.66 and 773,861.39 is: 1,067,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,715.11 : 1,912,266.66 = 773,861.39 : x
  2. Step 2: Convert to fraction form
    1,385,715.11/1,912,266.66 = 773,861.39/x
  3. Step 3: Cross multiply
    1,385,715.11x = 1,912,266.66 × 773,861.39
  4. Step 4: Simplify right side
    1,385,715.11x = 1,479,829,336,069.90
  5. Step 5: Solve for x
    x = 1,479,829,336,069.90/1,385,715.11
  6. Step 6: Final answer
    x = 1,067,917.45

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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.