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Finding the Fourth Proportional to 262,475.43, 393,775.86 and 84,982.63

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Solution

The fourth proportional to 262,475.43, 393,775.86 and 84,982.63 is: 127,494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,475.43 : 393,775.86 = 84,982.63 : x
  2. Step 2: Convert to fraction form
    262,475.43/393,775.86 = 84,982.63/x
  3. Step 3: Cross multiply
    262,475.43x = 393,775.86 × 84,982.63
  4. Step 4: Simplify right side
    262,475.43x = 33,464,108,213.31
  5. Step 5: Solve for x
    x = 33,464,108,213.31/262,475.43
  6. Step 6: Final answer
    x = 127,494.25

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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.