Home / 1,857,445.38-2,786,358.78-643,020.06

Finding the Fourth Proportional to 1,857,445.38, 2,786,358.78 and 643,020.06

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Solution

The fourth proportional to 1,857,445.38, 2,786,358.78 and 643,020.06 is: 964,596.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,445.38 : 2,786,358.78 = 643,020.06 : x
  2. Step 2: Convert to fraction form
    1,857,445.38/2,786,358.78 = 643,020.06/x
  3. Step 3: Cross multiply
    1,857,445.38x = 2,786,358.78 × 643,020.06
  4. Step 4: Simplify right side
    1,857,445.38x = 1,791,684,589,897.13
  5. Step 5: Solve for x
    x = 1,791,684,589,897.13/1,857,445.38
  6. Step 6: Final answer
    x = 964,596.11

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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.