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Finding the Fourth Proportional to 1,007.41, 1,511.16 and 358.24

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Solution

The fourth proportional to 1,007.41, 1,511.16 and 358.24 is: 537.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007.41 : 1,511.16 = 358.24 : x
  2. Step 2: Convert to fraction form
    1,007.41/1,511.16 = 358.24/x
  3. Step 3: Cross multiply
    1,007.41x = 1,511.16 × 358.24
  4. Step 4: Simplify right side
    1,007.41x = 541,357.96
  5. Step 5: Solve for x
    x = 541,357.96/1,007.41
  6. Step 6: Final answer
    x = 537.38

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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.