Home / 1,277,908.20-1,915,234.20-679,156.20

Finding the Fourth Proportional to 1,277,908.20, 1,915,234.20 and 679,156.20

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Solution

The fourth proportional to 1,277,908.20, 1,915,234.20 and 679,156.20 is: 1,017,869.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,908.20 : 1,915,234.20 = 679,156.20 : x
  2. Step 2: Convert to fraction form
    1,277,908.20/1,915,234.20 = 679,156.20/x
  3. Step 3: Cross multiply
    1,277,908.20x = 1,915,234.20 × 679,156.20
  4. Step 4: Simplify right side
    1,277,908.20x = 1,300,743,181,382.04
  5. Step 5: Solve for x
    x = 1,300,743,181,382.04/1,277,908.20
  6. Step 6: Final answer
    x = 1,017,869.03

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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.