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Finding the Fourth Proportional to 354,366.80, 530,958.48 and 248,997.14

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Solution

The fourth proportional to 354,366.80, 530,958.48 and 248,997.14 is: 373,079.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,366.80 : 530,958.48 = 248,997.14 : x
  2. Step 2: Convert to fraction form
    354,366.80/530,958.48 = 248,997.14/x
  3. Step 3: Cross multiply
    354,366.80x = 530,958.48 × 248,997.14
  4. Step 4: Simplify right side
    354,366.80x = 132,207,141,381.31
  5. Step 5: Solve for x
    x = 132,207,141,381.31/354,366.80
  6. Step 6: Final answer
    x = 373,079.93

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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.