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Finding the Fourth Proportional to 330,017.82, 455,424.48 and 179,114.82

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Solution

The fourth proportional to 330,017.82, 455,424.48 and 179,114.82 is: 247,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,017.82 : 455,424.48 = 179,114.82 : x
  2. Step 2: Convert to fraction form
    330,017.82/455,424.48 = 179,114.82/x
  3. Step 3: Cross multiply
    330,017.82x = 455,424.48 × 179,114.82
  4. Step 4: Simplify right side
    330,017.82x = 81,573,273,758.79
  5. Step 5: Solve for x
    x = 81,573,273,758.79/330,017.82
  6. Step 6: Final answer
    x = 247,178.39

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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.