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Finding the Fourth Proportional to 1,168.36, 1,752.48 and 346.64

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Solution

The fourth proportional to 1,168.36, 1,752.48 and 346.64 is: 519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.36 : 1,752.48 = 346.64 : x
  2. Step 2: Convert to fraction form
    1,168.36/1,752.48 = 346.64/x
  3. Step 3: Cross multiply
    1,168.36x = 1,752.48 × 346.64
  4. Step 4: Simplify right side
    1,168.36x = 607,479.67
  5. Step 5: Solve for x
    x = 607,479.67/1,168.36
  6. Step 6: Final answer
    x = 519.94

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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.