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Finding the Fourth Proportional to 427,720.60, 590,401.90 and 246,504.88

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Solution

The fourth proportional to 427,720.60, 590,401.90 and 246,504.88 is: 340,261.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,720.60 : 590,401.90 = 246,504.88 : x
  2. Step 2: Convert to fraction form
    427,720.60/590,401.90 = 246,504.88/x
  3. Step 3: Cross multiply
    427,720.60x = 590,401.90 × 246,504.88
  4. Step 4: Simplify right side
    427,720.60x = 145,536,949,511.27
  5. Step 5: Solve for x
    x = 145,536,949,511.27/427,720.60
  6. Step 6: Final answer
    x = 340,261.73

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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.