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Finding the Fourth Proportional to 352,753.20, 528,352.20 and 306,097.20

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Solution

The fourth proportional to 352,753.20, 528,352.20 and 306,097.20 is: 458,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,753.20 : 528,352.20 = 306,097.20 : x
  2. Step 2: Convert to fraction form
    352,753.20/528,352.20 = 306,097.20/x
  3. Step 3: Cross multiply
    352,753.20x = 528,352.20 × 306,097.20
  4. Step 4: Simplify right side
    352,753.20x = 161,727,129,033.84
  5. Step 5: Solve for x
    x = 161,727,129,033.84/352,753.20
  6. Step 6: Final answer
    x = 458,471.05

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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.