Home / 1,292,183.28-1,781,300.70-826,985.88

Finding the Fourth Proportional to 1,292,183.28, 1,781,300.70 and 826,985.88

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Solution

The fourth proportional to 1,292,183.28, 1,781,300.70 and 826,985.88 is: 1,140,016.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,183.28 : 1,781,300.70 = 826,985.88 : x
  2. Step 2: Convert to fraction form
    1,292,183.28/1,781,300.70 = 826,985.88/x
  3. Step 3: Cross multiply
    1,292,183.28x = 1,781,300.70 × 826,985.88
  4. Step 4: Simplify right side
    1,292,183.28x = 1,473,110,526,934.12
  5. Step 5: Solve for x
    x = 1,473,110,526,934.12/1,292,183.28
  6. Step 6: Final answer
    x = 1,140,016.71

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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.