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Finding the Fourth Proportional to 724,029.82, 998,902.76 and 451,994.42

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Solution

The fourth proportional to 724,029.82, 998,902.76 and 451,994.42 is: 623,590.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,029.82 : 998,902.76 = 451,994.42 : x
  2. Step 2: Convert to fraction form
    724,029.82/998,902.76 = 451,994.42/x
  3. Step 3: Cross multiply
    724,029.82x = 998,902.76 × 451,994.42
  4. Step 4: Simplify right side
    724,029.82x = 451,498,473,642.60
  5. Step 5: Solve for x
    x = 451,498,473,642.60/724,029.82
  6. Step 6: Final answer
    x = 623,590.99

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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.