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Finding the Fourth Proportional to 697.32, 1,048.02 and 582.48

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Solution

The fourth proportional to 697.32, 1,048.02 and 582.48 is: 875.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.32 : 1,048.02 = 582.48 : x
  2. Step 2: Convert to fraction form
    697.32/1,048.02 = 582.48/x
  3. Step 3: Cross multiply
    697.32x = 1,048.02 × 582.48
  4. Step 4: Simplify right side
    697.32x = 610,450.69
  5. Step 5: Solve for x
    x = 610,450.69/697.32
  6. Step 6: Final answer
    x = 875.42

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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.