Home / 1,248,685.29-1,722,016.19-828,838.55

Finding the Fourth Proportional to 1,248,685.29, 1,722,016.19 and 828,838.55

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Solution

The fourth proportional to 1,248,685.29, 1,722,016.19 and 828,838.55 is: 1,143,020.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,685.29 : 1,722,016.19 = 828,838.55 : x
  2. Step 2: Convert to fraction form
    1,248,685.29/1,722,016.19 = 828,838.55/x
  3. Step 3: Cross multiply
    1,248,685.29x = 1,722,016.19 × 828,838.55
  4. Step 4: Simplify right side
    1,248,685.29x = 1,427,273,397,851.93
  5. Step 5: Solve for x
    x = 1,427,273,397,851.93/1,248,685.29
  6. Step 6: Final answer
    x = 1,143,020.91

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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.