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Finding the Fourth Proportional to 4,253.70, 6,381.06 and 1,788.18

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Solution

The fourth proportional to 4,253.70, 6,381.06 and 1,788.18 is: 2,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.70 : 6,381.06 = 1,788.18 : x
  2. Step 2: Convert to fraction form
    4,253.70/6,381.06 = 1,788.18/x
  3. Step 3: Cross multiply
    4,253.70x = 6,381.06 × 1,788.18
  4. Step 4: Simplify right side
    4,253.70x = 11,410,483.87
  5. Step 5: Solve for x
    x = 11,410,483.87/4,253.70
  6. Step 6: Final answer
    x = 2,682.48

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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.