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Finding the Fourth Proportional to 330,222.54, 455,708.79 and 179,319.54

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Solution

The fourth proportional to 330,222.54, 455,708.79 and 179,319.54 is: 247,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,222.54 : 455,708.79 = 179,319.54 : x
  2. Step 2: Convert to fraction form
    330,222.54/455,708.79 = 179,319.54/x
  3. Step 3: Cross multiply
    330,222.54x = 455,708.79 × 179,319.54
  4. Step 4: Simplify right side
    330,222.54x = 81,717,490,596.76
  5. Step 5: Solve for x
    x = 81,717,490,596.76/330,222.54
  6. Step 6: Final answer
    x = 247,461.88

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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.