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Finding the Fourth Proportional to 576,086.40, 864,129.60 and 202,147.20

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Solution

The fourth proportional to 576,086.40, 864,129.60 and 202,147.20 is: 303,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,086.40 : 864,129.60 = 202,147.20 : x
  2. Step 2: Convert to fraction form
    576,086.40/864,129.60 = 202,147.20/x
  3. Step 3: Cross multiply
    576,086.40x = 864,129.60 × 202,147.20
  4. Step 4: Simplify right side
    576,086.40x = 174,681,379,077.12
  5. Step 5: Solve for x
    x = 174,681,379,077.12/576,086.40
  6. Step 6: Final answer
    x = 303,220.80

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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.