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Finding the Fourth Proportional to 486,522.48, 729,485.64 and 171,015.60

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Solution

The fourth proportional to 486,522.48, 729,485.64 and 171,015.60 is: 256,418.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,522.48 : 729,485.64 = 171,015.60 : x
  2. Step 2: Convert to fraction form
    486,522.48/729,485.64 = 171,015.60/x
  3. Step 3: Cross multiply
    486,522.48x = 729,485.64 × 171,015.60
  4. Step 4: Simplify right side
    486,522.48x = 124,753,424,415.98
  5. Step 5: Solve for x
    x = 124,753,424,415.98/486,522.48
  6. Step 6: Final answer
    x = 256,418.62

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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.