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Finding the Fourth Proportional to 343,634.40, 515,500.20 and 106,952.40

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Solution

The fourth proportional to 343,634.40, 515,500.20 and 106,952.40 is: 160,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,634.40 : 515,500.20 = 106,952.40 : x
  2. Step 2: Convert to fraction form
    343,634.40/515,500.20 = 106,952.40/x
  3. Step 3: Cross multiply
    343,634.40x = 515,500.20 × 106,952.40
  4. Step 4: Simplify right side
    343,634.40x = 55,133,983,590.48
  5. Step 5: Solve for x
    x = 55,133,983,590.48/343,634.40
  6. Step 6: Final answer
    x = 160,443.73

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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.