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Finding the Fourth Proportional to 740.24, 1,022.04 and 460.94

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Solution

The fourth proportional to 740.24, 1,022.04 and 460.94 is: 636.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.24 : 1,022.04 = 460.94 : x
  2. Step 2: Convert to fraction form
    740.24/1,022.04 = 460.94/x
  3. Step 3: Cross multiply
    740.24x = 1,022.04 × 460.94
  4. Step 4: Simplify right side
    740.24x = 471,099.12
  5. Step 5: Solve for x
    x = 471,099.12/740.24
  6. Step 6: Final answer
    x = 636.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.