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Finding the Fourth Proportional to 343,520.66, 474,061.38 and 190,568.87

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Solution

The fourth proportional to 343,520.66, 474,061.38 and 190,568.87 is: 262,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,520.66 : 474,061.38 = 190,568.87 : x
  2. Step 2: Convert to fraction form
    343,520.66/474,061.38 = 190,568.87/x
  3. Step 3: Cross multiply
    343,520.66x = 474,061.38 × 190,568.87
  4. Step 4: Simplify right side
    343,520.66x = 90,341,340,190.03
  5. Step 5: Solve for x
    x = 90,341,340,190.03/343,520.66
  6. Step 6: Final answer
    x = 262,986.63

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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.