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Finding the Fourth Proportional to 246,985.20, 370,477.80 and 217,954.80

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Solution

The fourth proportional to 246,985.20, 370,477.80 and 217,954.80 is: 326,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,985.20 : 370,477.80 = 217,954.80 : x
  2. Step 2: Convert to fraction form
    246,985.20/370,477.80 = 217,954.80/x
  3. Step 3: Cross multiply
    246,985.20x = 370,477.80 × 217,954.80
  4. Step 4: Simplify right side
    246,985.20x = 80,747,414,803.44
  5. Step 5: Solve for x
    x = 80,747,414,803.44/246,985.20
  6. Step 6: Final answer
    x = 326,932.20

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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.