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Finding the Fourth Proportional to 297,730.20, 410,859.18 and 161,758.20

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Solution

The fourth proportional to 297,730.20, 410,859.18 and 161,758.20 is: 223,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,730.20 : 410,859.18 = 161,758.20 : x
  2. Step 2: Convert to fraction form
    297,730.20/410,859.18 = 161,758.20/x
  3. Step 3: Cross multiply
    297,730.20x = 410,859.18 × 161,758.20
  4. Step 4: Simplify right side
    297,730.20x = 66,459,841,410.28
  5. Step 5: Solve for x
    x = 66,459,841,410.28/297,730.20
  6. Step 6: Final answer
    x = 223,221.70

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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.