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Finding the Fourth Proportional to 593,991.40, 890,994.54 and 392,874.88

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Solution

The fourth proportional to 593,991.40, 890,994.54 and 392,874.88 is: 589,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,991.40 : 890,994.54 = 392,874.88 : x
  2. Step 2: Convert to fraction form
    593,991.40/890,994.54 = 392,874.88/x
  3. Step 3: Cross multiply
    593,991.40x = 890,994.54 × 392,874.88
  4. Step 4: Simplify right side
    593,991.40x = 350,049,372,983.16
  5. Step 5: Solve for x
    x = 350,049,372,983.16/593,991.40
  6. Step 6: Final answer
    x = 589,317.24

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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.