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Finding the Fourth Proportional to 360,019.64, 496,817.46 and 198,871.22

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Solution

The fourth proportional to 360,019.64, 496,817.46 and 198,871.22 is: 274,436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,019.64 : 496,817.46 = 198,871.22 : x
  2. Step 2: Convert to fraction form
    360,019.64/496,817.46 = 198,871.22/x
  3. Step 3: Cross multiply
    360,019.64x = 496,817.46 × 198,871.22
  4. Step 4: Simplify right side
    360,019.64x = 98,802,694,387.50
  5. Step 5: Solve for x
    x = 98,802,694,387.50/360,019.64
  6. Step 6: Final answer
    x = 274,436.96

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Half scale
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Double scale
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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.