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Finding the Fourth Proportional to 262,309.91, 393,422.85 and 93,798.78

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Solution

The fourth proportional to 262,309.91, 393,422.85 and 93,798.78 is: 140,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,309.91 : 393,422.85 = 93,798.78 : x
  2. Step 2: Convert to fraction form
    262,309.91/393,422.85 = 93,798.78/x
  3. Step 3: Cross multiply
    262,309.91x = 393,422.85 × 93,798.78
  4. Step 4: Simplify right side
    262,309.91x = 36,902,583,354.12
  5. Step 5: Solve for x
    x = 36,902,583,354.12/262,309.91
  6. Step 6: Final answer
    x = 140,683.15

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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.