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Finding the Fourth Proportional to 395,744.05, 592,197.13 and 342,618.76

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Solution

The fourth proportional to 395,744.05, 592,197.13 and 342,618.76 is: 512,699.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,744.05 : 592,197.13 = 342,618.76 : x
  2. Step 2: Convert to fraction form
    395,744.05/592,197.13 = 342,618.76/x
  3. Step 3: Cross multiply
    395,744.05x = 592,197.13 × 342,618.76
  4. Step 4: Simplify right side
    395,744.05x = 202,897,846,356.16
  5. Step 5: Solve for x
    x = 202,897,846,356.16/395,744.05
  6. Step 6: Final answer
    x = 512,699.68

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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.