Home / 773,074.20-1,159,611.30-521,131.80

Finding the Fourth Proportional to 773,074.20, 1,159,611.30 and 521,131.80

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Solution

The fourth proportional to 773,074.20, 1,159,611.30 and 521,131.80 is: 781,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,074.20 : 1,159,611.30 = 521,131.80 : x
  2. Step 2: Convert to fraction form
    773,074.20/1,159,611.30 = 521,131.80/x
  3. Step 3: Cross multiply
    773,074.20x = 1,159,611.30 × 521,131.80
  4. Step 4: Simplify right side
    773,074.20x = 604,310,324,069.34
  5. Step 5: Solve for x
    x = 604,310,324,069.34/773,074.20
  6. Step 6: Final answer
    x = 781,697.70

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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.