Home / 1,386,353.78-2,079,514.20-439,732.70

Finding the Fourth Proportional to 1,386,353.78, 2,079,514.20 and 439,732.70

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Solution

The fourth proportional to 1,386,353.78, 2,079,514.20 and 439,732.70 is: 659,593.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,353.78 : 2,079,514.20 = 439,732.70 : x
  2. Step 2: Convert to fraction form
    1,386,353.78/2,079,514.20 = 439,732.70/x
  3. Step 3: Cross multiply
    1,386,353.78x = 2,079,514.20 × 439,732.70
  4. Step 4: Simplify right side
    1,386,353.78x = 914,430,393,854.34
  5. Step 5: Solve for x
    x = 914,430,393,854.34/1,386,353.78
  6. Step 6: Final answer
    x = 659,593.83

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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.