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Finding the Fourth Proportional to 1,066.59, 1,600.03 and 417.24

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Solution

The fourth proportional to 1,066.59, 1,600.03 and 417.24 is: 625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066.59 : 1,600.03 = 417.24 : x
  2. Step 2: Convert to fraction form
    1,066.59/1,600.03 = 417.24/x
  3. Step 3: Cross multiply
    1,066.59x = 1,600.03 × 417.24
  4. Step 4: Simplify right side
    1,066.59x = 667,598.43
  5. Step 5: Solve for x
    x = 667,598.43/1,066.59
  6. Step 6: Final answer
    x = 625.92

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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.