Home / 792,111.60-1,188,167.40-259,686.45

Finding the Fourth Proportional to 792,111.60, 1,188,167.40 and 259,686.45

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Solution

The fourth proportional to 792,111.60, 1,188,167.40 and 259,686.45 is: 389,529.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,111.60 : 1,188,167.40 = 259,686.45 : x
  2. Step 2: Convert to fraction form
    792,111.60/1,188,167.40 = 259,686.45/x
  3. Step 3: Cross multiply
    792,111.60x = 1,188,167.40 × 259,686.45
  4. Step 4: Simplify right side
    792,111.60x = 308,550,974,111.73
  5. Step 5: Solve for x
    x = 308,550,974,111.73/792,111.60
  6. Step 6: Final answer
    x = 389,529.68

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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.