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Finding the Fourth Proportional to 593,990.40, 890,993.04 and 392,873.88

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Solution

The fourth proportional to 593,990.40, 890,993.04 and 392,873.88 is: 589,315.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,990.40 : 890,993.04 = 392,873.88 : x
  2. Step 2: Convert to fraction form
    593,990.40/890,993.04 = 392,873.88/x
  3. Step 3: Cross multiply
    593,990.40x = 890,993.04 × 392,873.88
  4. Step 4: Simplify right side
    593,990.40x = 350,047,892,677.80
  5. Step 5: Solve for x
    x = 350,047,892,677.80/593,990.40
  6. Step 6: Final answer
    x = 589,315.74

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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.