Home / 815,053.46-1,220,989.74-533,717.78

Finding the Fourth Proportional to 815,053.46, 1,220,989.74 and 533,717.78

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Solution

The fourth proportional to 815,053.46, 1,220,989.74 and 533,717.78 is: 799,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,053.46 : 1,220,989.74 = 533,717.78 : x
  2. Step 2: Convert to fraction form
    815,053.46/1,220,989.74 = 533,717.78/x
  3. Step 3: Cross multiply
    815,053.46x = 1,220,989.74 × 533,717.78
  4. Step 4: Simplify right side
    815,053.46x = 651,663,933,435.58
  5. Step 5: Solve for x
    x = 651,663,933,435.58/815,053.46
  6. Step 6: Final answer
    x = 799,535.20

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1.5x scale

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.