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Finding the Fourth Proportional to 1,472.56, 2,208.79 and 376.93

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Solution

The fourth proportional to 1,472.56, 2,208.79 and 376.93 is: 565.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.56 : 2,208.79 = 376.93 : x
  2. Step 2: Convert to fraction form
    1,472.56/2,208.79 = 376.93/x
  3. Step 3: Cross multiply
    1,472.56x = 2,208.79 × 376.93
  4. Step 4: Simplify right side
    1,472.56x = 832,563.79
  5. Step 5: Solve for x
    x = 832,563.79/1,472.56
  6. Step 6: Final answer
    x = 565.39

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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.