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Finding the Fourth Proportional to 288,063.20, 432,094.80 and 270,552.80

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Solution

The fourth proportional to 288,063.20, 432,094.80 and 270,552.80 is: 405,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,063.20 : 432,094.80 = 270,552.80 : x
  2. Step 2: Convert to fraction form
    288,063.20/432,094.80 = 270,552.80/x
  3. Step 3: Cross multiply
    288,063.20x = 432,094.80 × 270,552.80
  4. Step 4: Simplify right side
    288,063.20x = 116,904,458,005.44
  5. Step 5: Solve for x
    x = 116,904,458,005.44/288,063.20
  6. Step 6: Final answer
    x = 405,829.20

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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.