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Finding the Fourth Proportional to 552,673.20, 829,447.20 and 215,875.20

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Solution

The fourth proportional to 552,673.20, 829,447.20 and 215,875.20 is: 323,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,673.20 : 829,447.20 = 215,875.20 : x
  2. Step 2: Convert to fraction form
    552,673.20/829,447.20 = 215,875.20/x
  3. Step 3: Cross multiply
    552,673.20x = 829,447.20 × 215,875.20
  4. Step 4: Simplify right side
    552,673.20x = 179,057,080,189.44
  5. Step 5: Solve for x
    x = 179,057,080,189.44/552,673.20
  6. Step 6: Final answer
    x = 323,983.65

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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.