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Finding the Fourth Proportional to 260,883.94, 391,501.28 and 92,403.67

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Solution

The fourth proportional to 260,883.94, 391,501.28 and 92,403.67 is: 138,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,883.94 : 391,501.28 = 92,403.67 : x
  2. Step 2: Convert to fraction form
    260,883.94/391,501.28 = 92,403.67/x
  3. Step 3: Cross multiply
    260,883.94x = 391,501.28 × 92,403.67
  4. Step 4: Simplify right side
    260,883.94x = 36,176,155,081.70
  5. Step 5: Solve for x
    x = 36,176,155,081.70/260,883.94
  6. Step 6: Final answer
    x = 138,667.62

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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.