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Finding the Fourth Proportional to 1,022.04, 1,533.60 and 474.12

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Solution

The fourth proportional to 1,022.04, 1,533.60 and 474.12 is: 711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.04 : 1,533.60 = 474.12 : x
  2. Step 2: Convert to fraction form
    1,022.04/1,533.60 = 474.12/x
  3. Step 3: Cross multiply
    1,022.04x = 1,533.60 × 474.12
  4. Step 4: Simplify right side
    1,022.04x = 727,110.43
  5. Step 5: Solve for x
    x = 727,110.43/1,022.04
  6. Step 6: Final answer
    x = 711.43

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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.