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Finding the Fourth Proportional to 352,633.20, 529,468.20 and 247,916.40

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Solution

The fourth proportional to 352,633.20, 529,468.20 and 247,916.40 is: 372,239.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,633.20 : 529,468.20 = 247,916.40 : x
  2. Step 2: Convert to fraction form
    352,633.20/529,468.20 = 247,916.40/x
  3. Step 3: Cross multiply
    352,633.20x = 529,468.20 × 247,916.40
  4. Step 4: Simplify right side
    352,633.20x = 131,263,850,058.48
  5. Step 5: Solve for x
    x = 131,263,850,058.48/352,633.20
  6. Step 6: Final answer
    x = 372,239.06

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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.