Home / 927,679.15-1,391,012.87-279,160.87

Finding the Fourth Proportional to 927,679.15, 1,391,012.87 and 279,160.87

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Solution

The fourth proportional to 927,679.15, 1,391,012.87 and 279,160.87 is: 418,589.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,679.15 : 1,391,012.87 = 279,160.87 : x
  2. Step 2: Convert to fraction form
    927,679.15/1,391,012.87 = 279,160.87/x
  3. Step 3: Cross multiply
    927,679.15x = 1,391,012.87 × 279,160.87
  4. Step 4: Simplify right side
    927,679.15x = 388,316,361,104.52
  5. Step 5: Solve for x
    x = 388,316,361,104.52/927,679.15
  6. Step 6: Final answer
    x = 418,589.08

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1.5x scale

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.