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Finding the Fourth Proportional to 944.38, 1,416.66 and 482.18

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Solution

The fourth proportional to 944.38, 1,416.66 and 482.18 is: 723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.38 : 1,416.66 = 482.18 : x
  2. Step 2: Convert to fraction form
    944.38/1,416.66 = 482.18/x
  3. Step 3: Cross multiply
    944.38x = 1,416.66 × 482.18
  4. Step 4: Simplify right side
    944.38x = 683,085.12
  5. Step 5: Solve for x
    x = 683,085.12/944.38
  6. Step 6: Final answer
    x = 723.32

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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.