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Finding the Fourth Proportional to 347,760.40, 522,274.20 and 207,792.40

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Solution

The fourth proportional to 347,760.40, 522,274.20 and 207,792.40 is: 312,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,760.40 : 522,274.20 = 207,792.40 : x
  2. Step 2: Convert to fraction form
    347,760.40/522,274.20 = 207,792.40/x
  3. Step 3: Cross multiply
    347,760.40x = 522,274.20 × 207,792.40
  4. Step 4: Simplify right side
    347,760.40x = 108,524,609,476.08
  5. Step 5: Solve for x
    x = 108,524,609,476.08/347,760.40
  6. Step 6: Final answer
    x = 312,067.19

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1.5x scale

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.