Home / 1,189,422.12-1,640,655.92-705,644.76

Finding the Fourth Proportional to 1,189,422.12, 1,640,655.92 and 705,644.76

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Solution

The fourth proportional to 1,189,422.12, 1,640,655.92 and 705,644.76 is: 973,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,422.12 : 1,640,655.92 = 705,644.76 : x
  2. Step 2: Convert to fraction form
    1,189,422.12/1,640,655.92 = 705,644.76/x
  3. Step 3: Cross multiply
    1,189,422.12x = 1,640,655.92 × 705,644.76
  4. Step 4: Simplify right side
    1,189,422.12x = 1,157,720,252,910.98
  5. Step 5: Solve for x
    x = 1,157,720,252,910.98/1,189,422.12
  6. Step 6: Final answer
    x = 973,346.83

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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.