Home / 1,943,154.30-2,912,593.05-680,331.90

Finding the Fourth Proportional to 1,943,154.30, 2,912,593.05 and 680,331.90

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Solution

The fourth proportional to 1,943,154.30, 2,912,593.05 and 680,331.90 is: 1,019,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,154.30 : 2,912,593.05 = 680,331.90 : x
  2. Step 2: Convert to fraction form
    1,943,154.30/2,912,593.05 = 680,331.90/x
  3. Step 3: Cross multiply
    1,943,154.30x = 2,912,593.05 × 680,331.90
  4. Step 4: Simplify right side
    1,943,154.30x = 1,981,529,963,633.30
  5. Step 5: Solve for x
    x = 1,981,529,963,633.30/1,943,154.30
  6. Step 6: Final answer
    x = 1,019,749.16

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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.