Home / 1,386,119.18-2,079,177.46-521,715.52

Finding the Fourth Proportional to 1,386,119.18, 2,079,177.46 and 521,715.52

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Solution

The fourth proportional to 1,386,119.18, 2,079,177.46 and 521,715.52 is: 782,572.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,119.18 : 2,079,177.46 = 521,715.52 : x
  2. Step 2: Convert to fraction form
    1,386,119.18/2,079,177.46 = 521,715.52/x
  3. Step 3: Cross multiply
    1,386,119.18x = 2,079,177.46 × 521,715.52
  4. Step 4: Simplify right side
    1,386,119.18x = 1,084,739,149,716.18
  5. Step 5: Solve for x
    x = 1,084,739,149,716.18/1,386,119.18
  6. Step 6: Final answer
    x = 782,572.79

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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.