Home / 3,454,121.70-5,176,808.55-1,321,359.30

Finding the Fourth Proportional to 3,454,121.70, 5,176,808.55 and 1,321,359.30

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Solution

The fourth proportional to 3,454,121.70, 5,176,808.55 and 1,321,359.30 is: 1,980,365.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454,121.70 : 5,176,808.55 = 1,321,359.30 : x
  2. Step 2: Convert to fraction form
    3,454,121.70/5,176,808.55 = 1,321,359.30/x
  3. Step 3: Cross multiply
    3,454,121.70x = 5,176,808.55 × 1,321,359.30
  4. Step 4: Simplify right side
    3,454,121.70x = 6,840,424,121,862.02
  5. Step 5: Solve for x
    x = 6,840,424,121,862.02/3,454,121.70
  6. Step 6: Final answer
    x = 1,980,365.70

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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.