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Finding the Fourth Proportional to 543,694.67, 816,040.23 and 291,260.19

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Solution

The fourth proportional to 543,694.67, 816,040.23 and 291,260.19 is: 437,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,694.67 : 816,040.23 = 291,260.19 : x
  2. Step 2: Convert to fraction form
    543,694.67/816,040.23 = 291,260.19/x
  3. Step 3: Cross multiply
    543,694.67x = 816,040.23 × 291,260.19
  4. Step 4: Simplify right side
    543,694.67x = 237,680,032,437.44
  5. Step 5: Solve for x
    x = 237,680,032,437.44/543,694.67
  6. Step 6: Final answer
    x = 437,157.19

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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.