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Finding the Fourth Proportional to 722,091.62, 996,598.68 and 411,994.46

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Solution

The fourth proportional to 722,091.62, 996,598.68 and 411,994.46 is: 568,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,091.62 : 996,598.68 = 411,994.46 : x
  2. Step 2: Convert to fraction form
    722,091.62/996,598.68 = 411,994.46/x
  3. Step 3: Cross multiply
    722,091.62x = 996,598.68 × 411,994.46
  4. Step 4: Simplify right side
    722,091.62x = 410,593,135,003.31
  5. Step 5: Solve for x
    x = 410,593,135,003.31/722,091.62
  6. Step 6: Final answer
    x = 568,616.40

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.