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Finding the Fourth Proportional to 1,394.83, 1,924.14 and 835.03

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Solution

The fourth proportional to 1,394.83, 1,924.14 and 835.03 is: 1,151.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.83 : 1,924.14 = 835.03 : x
  2. Step 2: Convert to fraction form
    1,394.83/1,924.14 = 835.03/x
  3. Step 3: Cross multiply
    1,394.83x = 1,924.14 × 835.03
  4. Step 4: Simplify right side
    1,394.83x = 1,606,714.62
  5. Step 5: Solve for x
    x = 1,606,714.62/1,394.83
  6. Step 6: Final answer
    x = 1,151.91

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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.