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Finding the Fourth Proportional to 374,378.46, 516,734.07 and 213,328.44

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Solution

The fourth proportional to 374,378.46, 516,734.07 and 213,328.44 is: 294,445.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,378.46 : 516,734.07 = 213,328.44 : x
  2. Step 2: Convert to fraction form
    374,378.46/516,734.07 = 213,328.44/x
  3. Step 3: Cross multiply
    374,378.46x = 516,734.07 × 213,328.44
  4. Step 4: Simplify right side
    374,378.46x = 110,234,073,047.95
  5. Step 5: Solve for x
    x = 110,234,073,047.95/374,378.46
  6. Step 6: Final answer
    x = 294,445.55

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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.