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Finding the Fourth Proportional to 974.94, 1,461.24 and 358.16

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Solution

The fourth proportional to 974.94, 1,461.24 and 358.16 is: 536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.94 : 1,461.24 = 358.16 : x
  2. Step 2: Convert to fraction form
    974.94/1,461.24 = 358.16/x
  3. Step 3: Cross multiply
    974.94x = 1,461.24 × 358.16
  4. Step 4: Simplify right side
    974.94x = 523,350.41
  5. Step 5: Solve for x
    x = 523,350.41/974.94
  6. Step 6: Final answer
    x = 536.80

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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.