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Finding the Fourth Proportional to 1,036.53, 1,429.01 and 704.38

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Solution

The fourth proportional to 1,036.53, 1,429.01 and 704.38 is: 971.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.53 : 1,429.01 = 704.38 : x
  2. Step 2: Convert to fraction form
    1,036.53/1,429.01 = 704.38/x
  3. Step 3: Cross multiply
    1,036.53x = 1,429.01 × 704.38
  4. Step 4: Simplify right side
    1,036.53x = 1,006,566.06
  5. Step 5: Solve for x
    x = 1,006,566.06/1,036.53
  6. Step 6: Final answer
    x = 971.09

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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.