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Finding the Fourth Proportional to 340,523.19, 469,880.90 and 195,321.48

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Solution

The fourth proportional to 340,523.19, 469,880.90 and 195,321.48 is: 269,520.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,523.19 : 469,880.90 = 195,321.48 : x
  2. Step 2: Convert to fraction form
    340,523.19/469,880.90 = 195,321.48/x
  3. Step 3: Cross multiply
    340,523.19x = 469,880.90 × 195,321.48
  4. Step 4: Simplify right side
    340,523.19x = 91,777,830,805.53
  5. Step 5: Solve for x
    x = 91,777,830,805.53/340,523.19
  6. Step 6: Final answer
    x = 269,520.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.