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Finding the Fourth Proportional to 1,177.76, 1,624.86 and 735.48

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Solution

The fourth proportional to 1,177.76, 1,624.86 and 735.48 is: 1,014.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.76 : 1,624.86 = 735.48 : x
  2. Step 2: Convert to fraction form
    1,177.76/1,624.86 = 735.48/x
  3. Step 3: Cross multiply
    1,177.76x = 1,624.86 × 735.48
  4. Step 4: Simplify right side
    1,177.76x = 1,195,052.03
  5. Step 5: Solve for x
    x = 1,195,052.03/1,177.76
  6. Step 6: Final answer
    x = 1,014.68

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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.