Home / 681,472.60-1,022,208.90-522,040.30

Finding the Fourth Proportional to 681,472.60, 1,022,208.90 and 522,040.30

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Solution

The fourth proportional to 681,472.60, 1,022,208.90 and 522,040.30 is: 783,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,472.60 : 1,022,208.90 = 522,040.30 : x
  2. Step 2: Convert to fraction form
    681,472.60/1,022,208.90 = 522,040.30/x
  3. Step 3: Cross multiply
    681,472.60x = 1,022,208.90 × 522,040.30
  4. Step 4: Simplify right side
    681,472.60x = 533,634,240,818.67
  5. Step 5: Solve for x
    x = 533,634,240,818.67/681,472.60
  6. Step 6: Final answer
    x = 783,060.45

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Double scale
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Similar ratio
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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.