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Finding the Fourth Proportional to 444,160.72, 666,536.33 and 207,521.85

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Solution

The fourth proportional to 444,160.72, 666,536.33 and 207,521.85 is: 311,420.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,160.72 : 666,536.33 = 207,521.85 : x
  2. Step 2: Convert to fraction form
    444,160.72/666,536.33 = 207,521.85/x
  3. Step 3: Cross multiply
    444,160.72x = 666,536.33 × 207,521.85
  4. Step 4: Simplify right side
    444,160.72x = 138,320,852,293.81
  5. Step 5: Solve for x
    x = 138,320,852,293.81/444,160.72
  6. Step 6: Final answer
    x = 311,420.72

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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.