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Finding the Fourth Proportional to 321,948.10, 482,922.15 and 188,892.10

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Solution

The fourth proportional to 321,948.10, 482,922.15 and 188,892.10 is: 283,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,948.10 : 482,922.15 = 188,892.10 : x
  2. Step 2: Convert to fraction form
    321,948.10/482,922.15 = 188,892.10/x
  3. Step 3: Cross multiply
    321,948.10x = 482,922.15 × 188,892.10
  4. Step 4: Simplify right side
    321,948.10x = 91,220,179,050.02
  5. Step 5: Solve for x
    x = 91,220,179,050.02/321,948.10
  6. Step 6: Final answer
    x = 283,338.15

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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.