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Finding the Fourth Proportional to 379,441.99, 523,637.46 and 207,370.61

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Solution

The fourth proportional to 379,441.99, 523,637.46 and 207,370.61 is: 286,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,441.99 : 523,637.46 = 207,370.61 : x
  2. Step 2: Convert to fraction form
    379,441.99/523,637.46 = 207,370.61/x
  3. Step 3: Cross multiply
    379,441.99x = 523,637.46 × 207,370.61
  4. Step 4: Simplify right side
    379,441.99x = 108,587,018,462.20
  5. Step 5: Solve for x
    x = 108,587,018,462.20/379,441.99
  6. Step 6: Final answer
    x = 286,175.55

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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.