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Finding the Fourth Proportional to 443,794.88, 612,437.01 and 239,845.13

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Solution

The fourth proportional to 443,794.88, 612,437.01 and 239,845.13 is: 330,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,794.88 : 612,437.01 = 239,845.13 : x
  2. Step 2: Convert to fraction form
    443,794.88/612,437.01 = 239,845.13/x
  3. Step 3: Cross multiply
    443,794.88x = 612,437.01 × 239,845.13
  4. Step 4: Simplify right side
    443,794.88x = 146,890,034,280.26
  5. Step 5: Solve for x
    x = 146,890,034,280.26/443,794.88
  6. Step 6: Final answer
    x = 330,986.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.