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Finding the Fourth Proportional to 449,144.64, 619,803.36 and 247,936.32

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Solution

The fourth proportional to 449,144.64, 619,803.36 and 247,936.32 is: 342,143.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,144.64 : 619,803.36 = 247,936.32 : x
  2. Step 2: Convert to fraction form
    449,144.64/619,803.36 = 247,936.32/x
  3. Step 3: Cross multiply
    449,144.64x = 619,803.36 × 247,936.32
  4. Step 4: Simplify right side
    449,144.64x = 153,671,764,202.04
  5. Step 5: Solve for x
    x = 153,671,764,202.04/449,144.64
  6. Step 6: Final answer
    x = 342,143.16

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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.