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Finding the Fourth Proportional to 1,164.75, 1,746.66 and 471.18

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Solution

The fourth proportional to 1,164.75, 1,746.66 and 471.18 is: 706.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.75 : 1,746.66 = 471.18 : x
  2. Step 2: Convert to fraction form
    1,164.75/1,746.66 = 471.18/x
  3. Step 3: Cross multiply
    1,164.75x = 1,746.66 × 471.18
  4. Step 4: Simplify right side
    1,164.75x = 822,991.26
  5. Step 5: Solve for x
    x = 822,991.26/1,164.75
  6. Step 6: Final answer
    x = 706.58

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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.