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Finding the Fourth Proportional to 526,548.75, 726,342.03 and 322,698.48

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Solution

The fourth proportional to 526,548.75, 726,342.03 and 322,698.48 is: 445,142.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,548.75 : 726,342.03 = 322,698.48 : x
  2. Step 2: Convert to fraction form
    526,548.75/726,342.03 = 322,698.48/x
  3. Step 3: Cross multiply
    526,548.75x = 726,342.03 × 322,698.48
  4. Step 4: Simplify right side
    526,548.75x = 234,389,469,041.11
  5. Step 5: Solve for x
    x = 234,389,469,041.11/526,548.75
  6. Step 6: Final answer
    x = 445,142.96

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.