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Finding the Fourth Proportional to 1,594.13, 2,392.20 and 728.46

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Solution

The fourth proportional to 1,594.13, 2,392.20 and 728.46 is: 1,093.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,594.13 : 2,392.20 = 728.46 : x
  2. Step 2: Convert to fraction form
    1,594.13/2,392.20 = 728.46/x
  3. Step 3: Cross multiply
    1,594.13x = 2,392.20 × 728.46
  4. Step 4: Simplify right side
    1,594.13x = 1,742,622.01
  5. Step 5: Solve for x
    x = 1,742,622.01/1,594.13
  6. Step 6: Final answer
    x = 1,093.15

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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.