Home / 1,399,086.80-1,930,682.76-826,312.40

Finding the Fourth Proportional to 1,399,086.80, 1,930,682.76 and 826,312.40

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Solution

The fourth proportional to 1,399,086.80, 1,930,682.76 and 826,312.40 is: 1,140,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,086.80 : 1,930,682.76 = 826,312.40 : x
  2. Step 2: Convert to fraction form
    1,399,086.80/1,930,682.76 = 826,312.40/x
  3. Step 3: Cross multiply
    1,399,086.80x = 1,930,682.76 × 826,312.40
  4. Step 4: Simplify right side
    1,399,086.80x = 1,595,347,105,054.22
  5. Step 5: Solve for x
    x = 1,595,347,105,054.22/1,399,086.80
  6. Step 6: Final answer
    x = 1,140,277.43

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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.