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Finding the Fourth Proportional to 343,655.43, 474,247.02 and 190,694.22

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Solution

The fourth proportional to 343,655.43, 474,247.02 and 190,694.22 is: 263,159.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,655.43 : 474,247.02 = 190,694.22 : x
  2. Step 2: Convert to fraction form
    343,655.43/474,247.02 = 190,694.22/x
  3. Step 3: Cross multiply
    343,655.43x = 474,247.02 × 190,694.22
  4. Step 4: Simplify right side
    343,655.43x = 90,436,165,566.22
  5. Step 5: Solve for x
    x = 90,436,165,566.22/343,655.43
  6. Step 6: Final answer
    x = 263,159.43

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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.