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Finding the Fourth Proportional to 593,788.72, 890,989.32 and 278,277.68

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Solution

The fourth proportional to 593,788.72, 890,989.32 and 278,277.68 is: 417,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,788.72 : 890,989.32 = 278,277.68 : x
  2. Step 2: Convert to fraction form
    593,788.72/890,989.32 = 278,277.68/x
  3. Step 3: Cross multiply
    593,788.72x = 890,989.32 × 278,277.68
  4. Step 4: Simplify right side
    593,788.72x = 247,942,440,874.38
  5. Step 5: Solve for x
    x = 247,942,440,874.38/593,788.72
  6. Step 6: Final answer
    x = 417,560.04

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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.