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Finding the Fourth Proportional to 521,996.40, 782,994.60 and 167,046.30

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Solution

The fourth proportional to 521,996.40, 782,994.60 and 167,046.30 is: 250,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,996.40 : 782,994.60 = 167,046.30 : x
  2. Step 2: Convert to fraction form
    521,996.40/782,994.60 = 167,046.30/x
  3. Step 3: Cross multiply
    521,996.40x = 782,994.60 × 167,046.30
  4. Step 4: Simplify right side
    521,996.40x = 130,796,350,849.98
  5. Step 5: Solve for x
    x = 130,796,350,849.98/521,996.40
  6. Step 6: Final answer
    x = 250,569.45

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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.