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Finding the Fourth Proportional to 1,472.50, 2,208.77 and 548.06

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Solution

The fourth proportional to 1,472.50, 2,208.77 and 548.06 is: 822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.50 : 2,208.77 = 548.06 : x
  2. Step 2: Convert to fraction form
    1,472.50/2,208.77 = 548.06/x
  3. Step 3: Cross multiply
    1,472.50x = 2,208.77 × 548.06
  4. Step 4: Simplify right side
    1,472.50x = 1,210,535.75
  5. Step 5: Solve for x
    x = 1,210,535.75/1,472.50
  6. Step 6: Final answer
    x = 822.10

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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.