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Finding the Fourth Proportional to 1,548.32, 2,322.48 and 574.16

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Solution

The fourth proportional to 1,548.32, 2,322.48 and 574.16 is: 861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.32 : 2,322.48 = 574.16 : x
  2. Step 2: Convert to fraction form
    1,548.32/2,322.48 = 574.16/x
  3. Step 3: Cross multiply
    1,548.32x = 2,322.48 × 574.16
  4. Step 4: Simplify right side
    1,548.32x = 1,333,475.12
  5. Step 5: Solve for x
    x = 1,333,475.12/1,548.32
  6. Step 6: Final answer
    x = 861.24

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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.