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Finding the Fourth Proportional to 974.84, 1,461.91 and 358.41

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Solution

The fourth proportional to 974.84, 1,461.91 and 358.41 is: 537.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.84 : 1,461.91 = 358.41 : x
  2. Step 2: Convert to fraction form
    974.84/1,461.91 = 358.41/x
  3. Step 3: Cross multiply
    974.84x = 1,461.91 × 358.41
  4. Step 4: Simplify right side
    974.84x = 523,959.51
  5. Step 5: Solve for x
    x = 523,959.51/974.84
  6. Step 6: Final answer
    x = 537.48

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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.