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Finding the Fourth Proportional to 352,594, 486,579.72 and 201,691

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Solution

The fourth proportional to 352,594, 486,579.72 and 201,691 is: 278,333.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,594 : 486,579.72 = 201,691 : x
  2. Step 2: Convert to fraction form
    352,594/486,579.72 = 201,691/x
  3. Step 3: Cross multiply
    352,594x = 486,579.72 × 201,691
  4. Step 4: Simplify right side
    352,594x = 98,138,750,306.52
  5. Step 5: Solve for x
    x = 98,138,750,306.52/352,594
  6. Step 6: Final answer
    x = 278,333.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.