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Finding the Fourth Proportional to 716.41, 988.50 and 417.52

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Solution

The fourth proportional to 716.41, 988.50 and 417.52 is: 576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.41 : 988.50 = 417.52 : x
  2. Step 2: Convert to fraction form
    716.41/988.50 = 417.52/x
  3. Step 3: Cross multiply
    716.41x = 988.50 × 417.52
  4. Step 4: Simplify right side
    716.41x = 412,718.52
  5. Step 5: Solve for x
    x = 412,718.52/716.41
  6. Step 6: Final answer
    x = 576.09

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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.