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Finding the Fourth Proportional to 543,534.57, 814,514.36 and 306,372.51

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Solution

The fourth proportional to 543,534.57, 814,514.36 and 306,372.51 is: 459,114.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,534.57 : 814,514.36 = 306,372.51 : x
  2. Step 2: Convert to fraction form
    543,534.57/814,514.36 = 306,372.51/x
  3. Step 3: Cross multiply
    543,534.57x = 814,514.36 × 306,372.51
  4. Step 4: Simplify right side
    543,534.57x = 249,544,807,372.38
  5. Step 5: Solve for x
    x = 249,544,807,372.38/543,534.57
  6. Step 6: Final answer
    x = 459,114.88

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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.