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Finding the Fourth Proportional to 1,359.26, 1,875.91 and 799.46

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Solution

The fourth proportional to 1,359.26, 1,875.91 and 799.46 is: 1,103.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359.26 : 1,875.91 = 799.46 : x
  2. Step 2: Convert to fraction form
    1,359.26/1,875.91 = 799.46/x
  3. Step 3: Cross multiply
    1,359.26x = 1,875.91 × 799.46
  4. Step 4: Simplify right side
    1,359.26x = 1,499,703.63
  5. Step 5: Solve for x
    x = 1,499,703.63/1,359.26
  6. Step 6: Final answer
    x = 1,103.32

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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.