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Finding the Fourth Proportional to 403,336.80, 557,103.60 and 295,736.40

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Solution

The fourth proportional to 403,336.80, 557,103.60 and 295,736.40 is: 408,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,336.80 : 557,103.60 = 295,736.40 : x
  2. Step 2: Convert to fraction form
    403,336.80/557,103.60 = 295,736.40/x
  3. Step 3: Cross multiply
    403,336.80x = 557,103.60 × 295,736.40
  4. Step 4: Simplify right side
    403,336.80x = 164,755,813,091.04
  5. Step 5: Solve for x
    x = 164,755,813,091.04/403,336.80
  6. Step 6: Final answer
    x = 408,481.98

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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.