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Finding the Fourth Proportional to 944.68, 1,416.60 and 505.83

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Solution

The fourth proportional to 944.68, 1,416.60 and 505.83 is: 758.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.68 : 1,416.60 = 505.83 : x
  2. Step 2: Convert to fraction form
    944.68/1,416.60 = 505.83/x
  3. Step 3: Cross multiply
    944.68x = 1,416.60 × 505.83
  4. Step 4: Simplify right side
    944.68x = 716,558.78
  5. Step 5: Solve for x
    x = 716,558.78/944.68
  6. Step 6: Final answer
    x = 758.52

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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.