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Finding the Fourth Proportional to 1,165.92, 1,746.57 and 703.83

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Solution

The fourth proportional to 1,165.92, 1,746.57 and 703.83 is: 1,054.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.92 : 1,746.57 = 703.83 : x
  2. Step 2: Convert to fraction form
    1,165.92/1,746.57 = 703.83/x
  3. Step 3: Cross multiply
    1,165.92x = 1,746.57 × 703.83
  4. Step 4: Simplify right side
    1,165.92x = 1,229,288.36
  5. Step 5: Solve for x
    x = 1,229,288.36/1,165.92
  6. Step 6: Final answer
    x = 1,054.35

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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.