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Finding the Fourth Proportional to 418,093.09, 576,958.78 and 243,652.17

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Solution

The fourth proportional to 418,093.09, 576,958.78 and 243,652.17 is: 336,234.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,093.09 : 576,958.78 = 243,652.17 : x
  2. Step 2: Convert to fraction form
    418,093.09/576,958.78 = 243,652.17/x
  3. Step 3: Cross multiply
    418,093.09x = 576,958.78 × 243,652.17
  4. Step 4: Simplify right side
    418,093.09x = 140,577,258,366.85
  5. Step 5: Solve for x
    x = 140,577,258,366.85/418,093.09
  6. Step 6: Final answer
    x = 336,234.35

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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.