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Finding the Fourth Proportional to 1,066.66, 1,600.08 and 336.22

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Solution

The fourth proportional to 1,066.66, 1,600.08 and 336.22 is: 504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066.66 : 1,600.08 = 336.22 : x
  2. Step 2: Convert to fraction form
    1,066.66/1,600.08 = 336.22/x
  3. Step 3: Cross multiply
    1,066.66x = 1,600.08 × 336.22
  4. Step 4: Simplify right side
    1,066.66x = 537,978.90
  5. Step 5: Solve for x
    x = 537,978.90/1,066.66
  6. Step 6: Final answer
    x = 504.36

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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.