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Finding the Fourth Proportional to 664,548.14, 996,774.01 and 259,664.24

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Solution

The fourth proportional to 664,548.14, 996,774.01 and 259,664.24 is: 389,477.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,548.14 : 996,774.01 = 259,664.24 : x
  2. Step 2: Convert to fraction form
    664,548.14/996,774.01 = 259,664.24/x
  3. Step 3: Cross multiply
    664,548.14x = 996,774.01 × 259,664.24
  4. Step 4: Simplify right side
    664,548.14x = 258,826,565,758.40
  5. Step 5: Solve for x
    x = 258,826,565,758.40/664,548.14
  6. Step 6: Final answer
    x = 389,477.53

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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.