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Finding the Fourth Proportional to 1,244.84, 1,718.50 and 964.44

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Solution

The fourth proportional to 1,244.84, 1,718.50 and 964.44 is: 1,331.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.84 : 1,718.50 = 964.44 : x
  2. Step 2: Convert to fraction form
    1,244.84/1,718.50 = 964.44/x
  3. Step 3: Cross multiply
    1,244.84x = 1,718.50 × 964.44
  4. Step 4: Simplify right side
    1,244.84x = 1,657,400.86
  5. Step 5: Solve for x
    x = 1,657,400.86/1,244.84
  6. Step 6: Final answer
    x = 1,331.41

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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.