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Finding the Fourth Proportional to 944.37, 1,416.15 and 424.26

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Solution

The fourth proportional to 944.37, 1,416.15 and 424.26 is: 636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.37 : 1,416.15 = 424.26 : x
  2. Step 2: Convert to fraction form
    944.37/1,416.15 = 424.26/x
  3. Step 3: Cross multiply
    944.37x = 1,416.15 × 424.26
  4. Step 4: Simplify right side
    944.37x = 600,815.80
  5. Step 5: Solve for x
    x = 600,815.80/944.37
  6. Step 6: Final answer
    x = 636.21

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1.5x scale

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.