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Finding the Fourth Proportional to 1,358.84, 1,875.52 and 799.34

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Solution

The fourth proportional to 1,358.84, 1,875.52 and 799.34 is: 1,103.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.84 : 1,875.52 = 799.34 : x
  2. Step 2: Convert to fraction form
    1,358.84/1,875.52 = 799.34/x
  3. Step 3: Cross multiply
    1,358.84x = 1,875.52 × 799.34
  4. Step 4: Simplify right side
    1,358.84x = 1,499,178.16
  5. Step 5: Solve for x
    x = 1,499,178.16/1,358.84
  6. Step 6: Final answer
    x = 1,103.28

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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.