Home / 814,549.44-1,220,200.32-636,221.76

Finding the Fourth Proportional to 814,549.44, 1,220,200.32 and 636,221.76

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Solution

The fourth proportional to 814,549.44, 1,220,200.32 and 636,221.76 is: 953,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,549.44 : 1,220,200.32 = 636,221.76 : x
  2. Step 2: Convert to fraction form
    814,549.44/1,220,200.32 = 636,221.76/x
  3. Step 3: Cross multiply
    814,549.44x = 1,220,200.32 × 636,221.76
  4. Step 4: Simplify right side
    814,549.44x = 776,317,995,142.96
  5. Step 5: Solve for x
    x = 776,317,995,142.96/814,549.44
  6. Step 6: Final answer
    x = 953,064.30

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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.