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Finding the Fourth Proportional to 548,266.40, 822,399.60 and 174,327.20

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Solution

The fourth proportional to 548,266.40, 822,399.60 and 174,327.20 is: 261,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,266.40 : 822,399.60 = 174,327.20 : x
  2. Step 2: Convert to fraction form
    548,266.40/822,399.60 = 174,327.20/x
  3. Step 3: Cross multiply
    548,266.40x = 822,399.60 × 174,327.20
  4. Step 4: Simplify right side
    548,266.40x = 143,366,619,549.12
  5. Step 5: Solve for x
    x = 143,366,619,549.12/548,266.40
  6. Step 6: Final answer
    x = 261,490.80

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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.