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Finding the Fourth Proportional to 538,786.92, 801,818.88 and 520,847.04

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Solution

The fourth proportional to 538,786.92, 801,818.88 and 520,847.04 is: 775,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,786.92 : 801,818.88 = 520,847.04 : x
  2. Step 2: Convert to fraction form
    538,786.92/801,818.88 = 520,847.04/x
  3. Step 3: Cross multiply
    538,786.92x = 801,818.88 × 520,847.04
  4. Step 4: Simplify right side
    538,786.92x = 417,624,990,264.12
  5. Step 5: Solve for x
    x = 417,624,990,264.12/538,786.92
  6. Step 6: Final answer
    x = 775,120.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.