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Finding the Fourth Proportional to 1,118.02, 1,676.08 and 532.69

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Solution

The fourth proportional to 1,118.02, 1,676.08 and 532.69 is: 798.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118.02 : 1,676.08 = 532.69 : x
  2. Step 2: Convert to fraction form
    1,118.02/1,676.08 = 532.69/x
  3. Step 3: Cross multiply
    1,118.02x = 1,676.08 × 532.69
  4. Step 4: Simplify right side
    1,118.02x = 892,831.06
  5. Step 5: Solve for x
    x = 892,831.06/1,118.02
  6. Step 6: Final answer
    x = 798.58

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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.