Home / 1,149,508.95-1,586,371.28-640,211.33

Finding the Fourth Proportional to 1,149,508.95, 1,586,371.28 and 640,211.33

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Solution

The fourth proportional to 1,149,508.95, 1,586,371.28 and 640,211.33 is: 883,518.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,508.95 : 1,586,371.28 = 640,211.33 : x
  2. Step 2: Convert to fraction form
    1,149,508.95/1,586,371.28 = 640,211.33/x
  3. Step 3: Cross multiply
    1,149,508.95x = 1,586,371.28 × 640,211.33
  4. Step 4: Simplify right side
    1,149,508.95x = 1,015,612,855,909.69
  5. Step 5: Solve for x
    x = 1,015,612,855,909.69/1,149,508.95
  6. Step 6: Final answer
    x = 883,518.88

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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.