Home / 1,781,661.38-2,672,937.68-519,489

Finding the Fourth Proportional to 1,781,661.38, 2,672,937.68 and 519,489

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Solution

The fourth proportional to 1,781,661.38, 2,672,937.68 and 519,489 is: 779,363.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,661.38 : 2,672,937.68 = 519,489 : x
  2. Step 2: Convert to fraction form
    1,781,661.38/2,672,937.68 = 519,489/x
  3. Step 3: Cross multiply
    1,781,661.38x = 2,672,937.68 × 519,489
  4. Step 4: Simplify right side
    1,781,661.38x = 1,388,561,719,848.08
  5. Step 5: Solve for x
    x = 1,388,561,719,848.08/1,781,661.38
  6. Step 6: Final answer
    x = 779,363.43

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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.