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Finding the Fourth Proportional to 2,363.30, 3,545.47 and 719.96

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Solution

The fourth proportional to 2,363.30, 3,545.47 and 719.96 is: 1,080.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,363.30 : 3,545.47 = 719.96 : x
  2. Step 2: Convert to fraction form
    2,363.30/3,545.47 = 719.96/x
  3. Step 3: Cross multiply
    2,363.30x = 3,545.47 × 719.96
  4. Step 4: Simplify right side
    2,363.30x = 2,552,596.58
  5. Step 5: Solve for x
    x = 2,552,596.58/2,363.30
  6. Step 6: Final answer
    x = 1,080.10

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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.