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Finding the Fourth Proportional to 330,005.65, 455,407.98 and 179,102.65

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Solution

The fourth proportional to 330,005.65, 455,407.98 and 179,102.65 is: 247,161.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,005.65 : 455,407.98 = 179,102.65 : x
  2. Step 2: Convert to fraction form
    330,005.65/455,407.98 = 179,102.65/x
  3. Step 3: Cross multiply
    330,005.65x = 455,407.98 × 179,102.65
  4. Step 4: Simplify right side
    330,005.65x = 81,564,776,049.15
  5. Step 5: Solve for x
    x = 81,564,776,049.15/330,005.65
  6. Step 6: Final answer
    x = 247,161.76

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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.