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Finding the Fourth Proportional to 1,734.75, 2,393.93 and 948.80

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Solution

The fourth proportional to 1,734.75, 2,393.93 and 948.80 is: 1,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,734.75 : 2,393.93 = 948.80 : x
  2. Step 2: Convert to fraction form
    1,734.75/2,393.93 = 948.80/x
  3. Step 3: Cross multiply
    1,734.75x = 2,393.93 × 948.80
  4. Step 4: Simplify right side
    1,734.75x = 2,271,344.07
  5. Step 5: Solve for x
    x = 2,271,344.07/1,734.75
  6. Step 6: Final answer
    x = 1,309.32

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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.