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Finding the Fourth Proportional to 441,317.20, 661,982.28 and 108,893.20

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Solution

The fourth proportional to 441,317.20, 661,982.28 and 108,893.20 is: 163,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,317.20 : 661,982.28 = 108,893.20 : x
  2. Step 2: Convert to fraction form
    441,317.20/661,982.28 = 108,893.20/x
  3. Step 3: Cross multiply
    441,317.20x = 661,982.28 × 108,893.20
  4. Step 4: Simplify right side
    441,317.20x = 72,085,368,812.50
  5. Step 5: Solve for x
    x = 72,085,368,812.50/441,317.20
  6. Step 6: Final answer
    x = 163,341.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.