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Finding the Fourth Proportional to 440,718.87, 661,161.29 and 314,044.87

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Solution

The fourth proportional to 440,718.87, 661,161.29 and 314,044.87 is: 471,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,718.87 : 661,161.29 = 314,044.87 : x
  2. Step 2: Convert to fraction form
    440,718.87/661,161.29 = 314,044.87/x
  3. Step 3: Cross multiply
    440,718.87x = 661,161.29 × 314,044.87
  4. Step 4: Simplify right side
    440,718.87x = 207,634,308,143.96
  5. Step 5: Solve for x
    x = 207,634,308,143.96/440,718.87
  6. Step 6: Final answer
    x = 471,126.43

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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.