Home / 814,061.80-1,220,747.10-393,466.60

Finding the Fourth Proportional to 814,061.80, 1,220,747.10 and 393,466.60

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Solution

The fourth proportional to 814,061.80, 1,220,747.10 and 393,466.60 is: 590,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,061.80 : 1,220,747.10 = 393,466.60 : x
  2. Step 2: Convert to fraction form
    814,061.80/1,220,747.10 = 393,466.60/x
  3. Step 3: Cross multiply
    814,061.80x = 1,220,747.10 × 393,466.60
  4. Step 4: Simplify right side
    814,061.80x = 480,323,210,896.86
  5. Step 5: Solve for x
    x = 480,323,210,896.86/814,061.80
  6. Step 6: Final answer
    x = 590,032.86

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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.