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Finding the Fourth Proportional to 1,132.50, 1,699.46 and 483.24

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Solution

The fourth proportional to 1,132.50, 1,699.46 and 483.24 is: 725.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.50 : 1,699.46 = 483.24 : x
  2. Step 2: Convert to fraction form
    1,132.50/1,699.46 = 483.24/x
  3. Step 3: Cross multiply
    1,132.50x = 1,699.46 × 483.24
  4. Step 4: Simplify right side
    1,132.50x = 821,247.05
  5. Step 5: Solve for x
    x = 821,247.05/1,132.50
  6. Step 6: Final answer
    x = 725.16

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Double scale
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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.