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Finding the Fourth Proportional to 352,314.39, 528,845.29 and 312,049.29

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Solution

The fourth proportional to 352,314.39, 528,845.29 and 312,049.29 is: 468,404.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,314.39 : 528,845.29 = 312,049.29 : x
  2. Step 2: Convert to fraction form
    352,314.39/528,845.29 = 312,049.29/x
  3. Step 3: Cross multiply
    352,314.39x = 528,845.29 × 312,049.29
  4. Step 4: Simplify right side
    352,314.39x = 165,025,795,162.11
  5. Step 5: Solve for x
    x = 165,025,795,162.11/352,314.39
  6. Step 6: Final answer
    x = 468,404.93

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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.