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Finding the Fourth Proportional to 1,166.88, 1,748.16 and 841.44

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Solution

The fourth proportional to 1,166.88, 1,748.16 and 841.44 is: 1,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.88 : 1,748.16 = 841.44 : x
  2. Step 2: Convert to fraction form
    1,166.88/1,748.16 = 841.44/x
  3. Step 3: Cross multiply
    1,166.88x = 1,748.16 × 841.44
  4. Step 4: Simplify right side
    1,166.88x = 1,470,971.75
  5. Step 5: Solve for x
    x = 1,470,971.75/1,166.88
  6. Step 6: Final answer
    x = 1,260.60

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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.