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Finding the Fourth Proportional to 1,063.95, 1,467.02 and 974.66

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Solution

The fourth proportional to 1,063.95, 1,467.02 and 974.66 is: 1,343.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.95 : 1,467.02 = 974.66 : x
  2. Step 2: Convert to fraction form
    1,063.95/1,467.02 = 974.66/x
  3. Step 3: Cross multiply
    1,063.95x = 1,467.02 × 974.66
  4. Step 4: Simplify right side
    1,063.95x = 1,429,833.50
  5. Step 5: Solve for x
    x = 1,429,833.50/1,063.95
  6. Step 6: Final answer
    x = 1,343.89

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Why These Related Problems?

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