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Finding the Fourth Proportional to 631.60, 945.60 and 566.80

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Solution

The fourth proportional to 631.60, 945.60 and 566.80 is: 848.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.60 : 945.60 = 566.80 : x
  2. Step 2: Convert to fraction form
    631.60/945.60 = 566.80/x
  3. Step 3: Cross multiply
    631.60x = 945.60 × 566.80
  4. Step 4: Simplify right side
    631.60x = 535,966.08
  5. Step 5: Solve for x
    x = 535,966.08/631.60
  6. Step 6: Final answer
    x = 848.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.