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Finding the Fourth Proportional to 611,996.40, 917,994.60 and 567,759.60

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Solution

The fourth proportional to 611,996.40, 917,994.60 and 567,759.60 is: 851,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,996.40 : 917,994.60 = 567,759.60 : x
  2. Step 2: Convert to fraction form
    611,996.40/917,994.60 = 567,759.60/x
  3. Step 3: Cross multiply
    611,996.40x = 917,994.60 × 567,759.60
  4. Step 4: Simplify right side
    611,996.40x = 521,200,246,898.16
  5. Step 5: Solve for x
    x = 521,200,246,898.16/611,996.40
  6. Step 6: Final answer
    x = 851,639.40

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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.