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Finding the Fourth Proportional to 1,036.83, 1,555.20 and 706.94

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Solution

The fourth proportional to 1,036.83, 1,555.20 and 706.94 is: 1,060.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.83 : 1,555.20 = 706.94 : x
  2. Step 2: Convert to fraction form
    1,036.83/1,555.20 = 706.94/x
  3. Step 3: Cross multiply
    1,036.83x = 1,555.20 × 706.94
  4. Step 4: Simplify right side
    1,036.83x = 1,099,428.49
  5. Step 5: Solve for x
    x = 1,099,428.49/1,036.83
  6. Step 6: Final answer
    x = 1,060.37

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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.