Home / 1,095,856.05-1,512,278.42-612,420.78

Finding the Fourth Proportional to 1,095,856.05, 1,512,278.42 and 612,420.78

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Solution

The fourth proportional to 1,095,856.05, 1,512,278.42 and 612,420.78 is: 845,139.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,856.05 : 1,512,278.42 = 612,420.78 : x
  2. Step 2: Convert to fraction form
    1,095,856.05/1,512,278.42 = 612,420.78/x
  3. Step 3: Cross multiply
    1,095,856.05x = 1,512,278.42 × 612,420.78
  4. Step 4: Simplify right side
    1,095,856.05x = 926,150,729,553.57
  5. Step 5: Solve for x
    x = 926,150,729,553.57/1,095,856.05
  6. Step 6: Final answer
    x = 845,139.04

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1.5x scale

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.