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Finding the Fourth Proportional to 275,312.20, 412,968.30 and 246,443.80

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Solution

The fourth proportional to 275,312.20, 412,968.30 and 246,443.80 is: 369,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,312.20 : 412,968.30 = 246,443.80 : x
  2. Step 2: Convert to fraction form
    275,312.20/412,968.30 = 246,443.80/x
  3. Step 3: Cross multiply
    275,312.20x = 412,968.30 × 246,443.80
  4. Step 4: Simplify right side
    275,312.20x = 101,773,477,131.54
  5. Step 5: Solve for x
    x = 101,773,477,131.54/275,312.20
  6. Step 6: Final answer
    x = 369,665.70

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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.