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Finding the Fourth Proportional to 1,744.79, 2,407.85 and 958.88

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Solution

The fourth proportional to 1,744.79, 2,407.85 and 958.88 is: 1,323.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.79 : 2,407.85 = 958.88 : x
  2. Step 2: Convert to fraction form
    1,744.79/2,407.85 = 958.88/x
  3. Step 3: Cross multiply
    1,744.79x = 2,407.85 × 958.88
  4. Step 4: Simplify right side
    1,744.79x = 2,308,847.62
  5. Step 5: Solve for x
    x = 2,308,847.62/1,744.79
  6. Step 6: Final answer
    x = 1,323.28

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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.