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Finding the Fourth Proportional to 543,798.11, 814,858.82 and 291,112.13

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Solution

The fourth proportional to 543,798.11, 814,858.82 and 291,112.13 is: 436,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,798.11 : 814,858.82 = 291,112.13 : x
  2. Step 2: Convert to fraction form
    543,798.11/814,858.82 = 291,112.13/x
  3. Step 3: Cross multiply
    543,798.11x = 814,858.82 × 291,112.13
  4. Step 4: Simplify right side
    543,798.11x = 237,215,285,283.93
  5. Step 5: Solve for x
    x = 237,215,285,283.93/543,798.11
  6. Step 6: Final answer
    x = 436,219.40

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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.