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Finding the Fourth Proportional to 329,920.35, 455,295.39 and 179,017.35

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Solution

The fourth proportional to 329,920.35, 455,295.39 and 179,017.35 is: 247,046.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,920.35 : 455,295.39 = 179,017.35 : x
  2. Step 2: Convert to fraction form
    329,920.35/455,295.39 = 179,017.35/x
  3. Step 3: Cross multiply
    329,920.35x = 455,295.39 × 179,017.35
  4. Step 4: Simplify right side
    329,920.35x = 81,505,774,185.02
  5. Step 5: Solve for x
    x = 81,505,774,185.02/329,920.35
  6. Step 6: Final answer
    x = 247,046.82

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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.