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Finding the Fourth Proportional to 1,066.62, 1,599.32 and 627.93

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Solution

The fourth proportional to 1,066.62, 1,599.32 and 627.93 is: 941.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066.62 : 1,599.32 = 627.93 : x
  2. Step 2: Convert to fraction form
    1,066.62/1,599.32 = 627.93/x
  3. Step 3: Cross multiply
    1,066.62x = 1,599.32 × 627.93
  4. Step 4: Simplify right side
    1,066.62x = 1,004,256.31
  5. Step 5: Solve for x
    x = 1,004,256.31/1,066.62
  6. Step 6: Final answer
    x = 941.53

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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.