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Finding the Fourth Proportional to 575.04, 793.60 and 326.40

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Solution

The fourth proportional to 575.04, 793.60 and 326.40 is: 450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.04 : 793.60 = 326.40 : x
  2. Step 2: Convert to fraction form
    575.04/793.60 = 326.40/x
  3. Step 3: Cross multiply
    575.04x = 793.60 × 326.40
  4. Step 4: Simplify right side
    575.04x = 259,031.04
  5. Step 5: Solve for x
    x = 259,031.04/575.04
  6. Step 6: Final answer
    x = 450.46

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