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Finding the Fourth Proportional to 1,068.35, 1,472.28 and 736.17

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Solution

The fourth proportional to 1,068.35, 1,472.28 and 736.17 is: 1,014.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.35 : 1,472.28 = 736.17 : x
  2. Step 2: Convert to fraction form
    1,068.35/1,472.28 = 736.17/x
  3. Step 3: Cross multiply
    1,068.35x = 1,472.28 × 736.17
  4. Step 4: Simplify right side
    1,068.35x = 1,083,848.37
  5. Step 5: Solve for x
    x = 1,083,848.37/1,068.35
  6. Step 6: Final answer
    x = 1,014.51

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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.