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Finding the Fourth Proportional to 321,982.60, 482,973.90 and 202,232.20

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Solution

The fourth proportional to 321,982.60, 482,973.90 and 202,232.20 is: 303,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,982.60 : 482,973.90 = 202,232.20 : x
  2. Step 2: Convert to fraction form
    321,982.60/482,973.90 = 202,232.20/x
  3. Step 3: Cross multiply
    321,982.60x = 482,973.90 × 202,232.20
  4. Step 4: Simplify right side
    321,982.60x = 97,672,874,339.58
  5. Step 5: Solve for x
    x = 97,672,874,339.58/321,982.60
  6. Step 6: Final answer
    x = 303,348.30

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Double scale
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Similar ratio
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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.