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Finding the Fourth Proportional to 352,596.78, 486,583.56 and 201,693.78

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Solution

The fourth proportional to 352,596.78, 486,583.56 and 201,693.78 is: 278,337.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,596.78 : 486,583.56 = 201,693.78 : x
  2. Step 2: Convert to fraction form
    352,596.78/486,583.56 = 201,693.78/x
  3. Step 3: Cross multiply
    352,596.78x = 486,583.56 × 201,693.78
  4. Step 4: Simplify right side
    352,596.78x = 98,140,877,502.26
  5. Step 5: Solve for x
    x = 98,140,877,502.26/352,596.78
  6. Step 6: Final answer
    x = 278,337.42

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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.