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Finding the Fourth Proportional to 399,074.76, 550,674.69 and 227,014.58

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Solution

The fourth proportional to 399,074.76, 550,674.69 and 227,014.58 is: 313,252.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,074.76 : 550,674.69 = 227,014.58 : x
  2. Step 2: Convert to fraction form
    399,074.76/550,674.69 = 227,014.58/x
  3. Step 3: Cross multiply
    399,074.76x = 550,674.69 × 227,014.58
  4. Step 4: Simplify right side
    399,074.76x = 125,011,180,713.61
  5. Step 5: Solve for x
    x = 125,011,180,713.61/399,074.76
  6. Step 6: Final answer
    x = 313,252.54

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1.5x scale

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.