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Finding the Fourth Proportional to 1,035.51, 1,552.96 and 548.30

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Solution

The fourth proportional to 1,035.51, 1,552.96 and 548.30 is: 822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.51 : 1,552.96 = 548.30 : x
  2. Step 2: Convert to fraction form
    1,035.51/1,552.96 = 548.30/x
  3. Step 3: Cross multiply
    1,035.51x = 1,552.96 × 548.30
  4. Step 4: Simplify right side
    1,035.51x = 851,478.83
  5. Step 5: Solve for x
    x = 851,478.83/1,035.51
  6. Step 6: Final answer
    x = 822.28

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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.