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Finding the Fourth Proportional to 1,165.29, 1,745.65 and 701.70

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Solution

The fourth proportional to 1,165.29, 1,745.65 and 701.70 is: 1,051.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.29 : 1,745.65 = 701.70 : x
  2. Step 2: Convert to fraction form
    1,165.29/1,745.65 = 701.70/x
  3. Step 3: Cross multiply
    1,165.29x = 1,745.65 × 701.70
  4. Step 4: Simplify right side
    1,165.29x = 1,224,922.61
  5. Step 5: Solve for x
    x = 1,224,922.61/1,165.29
  6. Step 6: Final answer
    x = 1,051.17

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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.