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Finding the Fourth Proportional to 522,047.60, 781,321.80 and 522,047.60

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Solution

The fourth proportional to 522,047.60, 781,321.80 and 522,047.60 is: 781,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,047.60 : 781,321.80 = 522,047.60 : x
  2. Step 2: Convert to fraction form
    522,047.60/781,321.80 = 522,047.60/x
  3. Step 3: Cross multiply
    522,047.60x = 781,321.80 × 522,047.60
  4. Step 4: Simplify right side
    522,047.60x = 407,887,170,517.68
  5. Step 5: Solve for x
    x = 407,887,170,517.68/522,047.60
  6. Step 6: Final answer
    x = 781,321.80

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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.