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Finding the Fourth Proportional to 374,608.08, 516,859.43 and 213,459.71

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Solution

The fourth proportional to 374,608.08, 516,859.43 and 213,459.71 is: 294,517.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,608.08 : 516,859.43 = 213,459.71 : x
  2. Step 2: Convert to fraction form
    374,608.08/516,859.43 = 213,459.71/x
  3. Step 3: Cross multiply
    374,608.08x = 516,859.43 × 213,459.71
  4. Step 4: Simplify right side
    374,608.08x = 110,328,660,386.97
  5. Step 5: Solve for x
    x = 110,328,660,386.97/374,608.08
  6. Step 6: Final answer
    x = 294,517.57

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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.