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Finding the Fourth Proportional to 1,719.21, 2,372.57 and 952.68

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Solution

The fourth proportional to 1,719.21, 2,372.57 and 952.68 is: 1,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.21 : 2,372.57 = 952.68 : x
  2. Step 2: Convert to fraction form
    1,719.21/2,372.57 = 952.68/x
  3. Step 3: Cross multiply
    1,719.21x = 2,372.57 × 952.68
  4. Step 4: Simplify right side
    1,719.21x = 2,260,303.54
  5. Step 5: Solve for x
    x = 2,260,303.54/1,719.21
  6. Step 6: Final answer
    x = 1,314.74

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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.