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Finding the Fourth Proportional to 522,041.80, 783,062.70 and 256,321.30

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Solution

The fourth proportional to 522,041.80, 783,062.70 and 256,321.30 is: 384,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,041.80 : 783,062.70 = 256,321.30 : x
  2. Step 2: Convert to fraction form
    522,041.80/783,062.70 = 256,321.30/x
  3. Step 3: Cross multiply
    522,041.80x = 783,062.70 × 256,321.30
  4. Step 4: Simplify right side
    522,041.80x = 200,715,649,245.51
  5. Step 5: Solve for x
    x = 200,715,649,245.51/522,041.80
  6. Step 6: Final answer
    x = 384,481.95

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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.