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Finding the Fourth Proportional to 2,038.96, 3,058.50 and 652.44

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Solution

The fourth proportional to 2,038.96, 3,058.50 and 652.44 is: 978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.96 : 3,058.50 = 652.44 : x
  2. Step 2: Convert to fraction form
    2,038.96/3,058.50 = 652.44/x
  3. Step 3: Cross multiply
    2,038.96x = 3,058.50 × 652.44
  4. Step 4: Simplify right side
    2,038.96x = 1,995,487.74
  5. Step 5: Solve for x
    x = 1,995,487.74/2,038.96
  6. Step 6: Final answer
    x = 978.68

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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.