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Finding the Fourth Proportional to 1,625.55, 2,436.75 and 529.22

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Solution

The fourth proportional to 1,625.55, 2,436.75 and 529.22 is: 793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.55 : 2,436.75 = 529.22 : x
  2. Step 2: Convert to fraction form
    1,625.55/2,436.75 = 529.22/x
  3. Step 3: Cross multiply
    1,625.55x = 2,436.75 × 529.22
  4. Step 4: Simplify right side
    1,625.55x = 1,289,576.84
  5. Step 5: Solve for x
    x = 1,289,576.84/1,625.55
  6. Step 6: Final answer
    x = 793.32

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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.