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Finding the Fourth Proportional to 330,393.25, 455,943.09 and 179,490.25

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Solution

The fourth proportional to 330,393.25, 455,943.09 and 179,490.25 is: 247,696.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,393.25 : 455,943.09 = 179,490.25 : x
  2. Step 2: Convert to fraction form
    330,393.25/455,943.09 = 179,490.25/x
  3. Step 3: Cross multiply
    330,393.25x = 455,943.09 × 179,490.25
  4. Step 4: Simplify right side
    330,393.25x = 81,837,339,209.87
  5. Step 5: Solve for x
    x = 81,837,339,209.87/330,393.25
  6. Step 6: Final answer
    x = 247,696.77

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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.