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Finding the Fourth Proportional to 2,940.48, 4,409.10 and 1,553.58

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Solution

The fourth proportional to 2,940.48, 4,409.10 and 1,553.58 is: 2,329.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.48 : 4,409.10 = 1,553.58 : x
  2. Step 2: Convert to fraction form
    2,940.48/4,409.10 = 1,553.58/x
  3. Step 3: Cross multiply
    2,940.48x = 4,409.10 × 1,553.58
  4. Step 4: Simplify right side
    2,940.48x = 6,849,889.58
  5. Step 5: Solve for x
    x = 6,849,889.58/2,940.48
  6. Step 6: Final answer
    x = 2,329.51

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1.5x scale

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.