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Finding the Fourth Proportional to 703,142.76, 1,054,892.74 and 204,506.76

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Solution

The fourth proportional to 703,142.76, 1,054,892.74 and 204,506.76 is: 306,812.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,142.76 : 1,054,892.74 = 204,506.76 : x
  2. Step 2: Convert to fraction form
    703,142.76/1,054,892.74 = 204,506.76/x
  3. Step 3: Cross multiply
    703,142.76x = 1,054,892.74 × 204,506.76
  4. Step 4: Simplify right side
    703,142.76x = 215,732,696,404.92
  5. Step 5: Solve for x
    x = 215,732,696,404.92/703,142.76
  6. Step 6: Final answer
    x = 306,812.09

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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.