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Finding the Fourth Proportional to 443,951.91, 666,026.48 and 207,165.42

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Solution

The fourth proportional to 443,951.91, 666,026.48 and 207,165.42 is: 310,794.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,951.91 : 666,026.48 = 207,165.42 : x
  2. Step 2: Convert to fraction form
    443,951.91/666,026.48 = 207,165.42/x
  3. Step 3: Cross multiply
    443,951.91x = 666,026.48 × 207,165.42
  4. Step 4: Simplify right side
    443,951.91x = 137,977,654,424.50
  5. Step 5: Solve for x
    x = 137,977,654,424.50/443,951.91
  6. Step 6: Final answer
    x = 310,794.15

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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.