Home / 2,153,478.42-2,971,776.11-1,223,179.65

Finding the Fourth Proportional to 2,153,478.42, 2,971,776.11 and 1,223,179.65

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Solution

The fourth proportional to 2,153,478.42, 2,971,776.11 and 1,223,179.65 is: 1,687,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,478.42 : 2,971,776.11 = 1,223,179.65 : x
  2. Step 2: Convert to fraction form
    2,153,478.42/2,971,776.11 = 1,223,179.65/x
  3. Step 3: Cross multiply
    2,153,478.42x = 2,971,776.11 × 1,223,179.65
  4. Step 4: Simplify right side
    2,153,478.42x = 3,635,016,055,992.26
  5. Step 5: Solve for x
    x = 3,635,016,055,992.26/2,153,478.42
  6. Step 6: Final answer
    x = 1,687,974.22

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.