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Finding the Fourth Proportional to 330,017.68, 455,424.69 and 179,114.68

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Solution

The fourth proportional to 330,017.68, 455,424.69 and 179,114.68 is: 247,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,017.68 : 455,424.69 = 179,114.68 : x
  2. Step 2: Convert to fraction form
    330,017.68/455,424.69 = 179,114.68/x
  3. Step 3: Cross multiply
    330,017.68x = 455,424.69 × 179,114.68
  4. Step 4: Simplify right side
    330,017.68x = 81,573,247,613.45
  5. Step 5: Solve for x
    x = 81,573,247,613.45/330,017.68
  6. Step 6: Final answer
    x = 247,178.42

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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.