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Finding the Fourth Proportional to 536,149.20, 802,998.54 and 255,863.28

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Solution

The fourth proportional to 536,149.20, 802,998.54 and 255,863.28 is: 383,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,149.20 : 802,998.54 = 255,863.28 : x
  2. Step 2: Convert to fraction form
    536,149.20/802,998.54 = 255,863.28/x
  3. Step 3: Cross multiply
    536,149.20x = 802,998.54 × 255,863.28
  4. Step 4: Simplify right side
    536,149.20x = 205,457,840,279.61
  5. Step 5: Solve for x
    x = 205,457,840,279.61/536,149.20
  6. Step 6: Final answer
    x = 383,210.20

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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.