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Finding the Fourth Proportional to 449,136.25, 619,809.11 and 247,932.25

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Solution

The fourth proportional to 449,136.25, 619,809.11 and 247,932.25 is: 342,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,136.25 : 619,809.11 = 247,932.25 : x
  2. Step 2: Convert to fraction form
    449,136.25/619,809.11 = 247,932.25/x
  3. Step 3: Cross multiply
    449,136.25x = 619,809.11 × 247,932.25
  4. Step 4: Simplify right side
    449,136.25x = 153,670,665,973.14
  5. Step 5: Solve for x
    x = 153,670,665,973.14/449,136.25
  6. Step 6: Final answer
    x = 342,147.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.