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Finding the Fourth Proportional to 924.42, 1,276.11 and 575.34

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Solution

The fourth proportional to 924.42, 1,276.11 and 575.34 is: 794.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.42 : 1,276.11 = 575.34 : x
  2. Step 2: Convert to fraction form
    924.42/1,276.11 = 575.34/x
  3. Step 3: Cross multiply
    924.42x = 1,276.11 × 575.34
  4. Step 4: Simplify right side
    924.42x = 734,197.13
  5. Step 5: Solve for x
    x = 734,197.13/924.42
  6. Step 6: Final answer
    x = 794.22

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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.