Home / 1,785,217.90-2,678,279.96-826,364.64

Finding the Fourth Proportional to 1,785,217.90, 2,678,279.96 and 826,364.64

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Solution

The fourth proportional to 1,785,217.90, 2,678,279.96 and 826,364.64 is: 1,239,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785,217.90 : 2,678,279.96 = 826,364.64 : x
  2. Step 2: Convert to fraction form
    1,785,217.90/2,678,279.96 = 826,364.64/x
  3. Step 3: Cross multiply
    1,785,217.90x = 2,678,279.96 × 826,364.64
  4. Step 4: Simplify right side
    1,785,217.90x = 2,213,235,854,964.61
  5. Step 5: Solve for x
    x = 2,213,235,854,964.61/1,785,217.90
  6. Step 6: Final answer
    x = 1,239,756.70

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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.