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Finding the Fourth Proportional to 348,502.60, 522,062.70 and 207,843.40

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Solution

The fourth proportional to 348,502.60, 522,062.70 and 207,843.40 is: 311,352.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,502.60 : 522,062.70 = 207,843.40 : x
  2. Step 2: Convert to fraction form
    348,502.60/522,062.70 = 207,843.40/x
  3. Step 3: Cross multiply
    348,502.60x = 522,062.70 × 207,843.40
  4. Step 4: Simplify right side
    348,502.60x = 108,507,286,581.18
  5. Step 5: Solve for x
    x = 108,507,286,581.18/348,502.60
  6. Step 6: Final answer
    x = 311,352.88

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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.