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Finding the Fourth Proportional to 577,120.30, 865,695.30 and 273,443.20

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Solution

The fourth proportional to 577,120.30, 865,695.30 and 273,443.20 is: 410,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,120.30 : 865,695.30 = 273,443.20 : x
  2. Step 2: Convert to fraction form
    577,120.30/865,695.30 = 273,443.20/x
  3. Step 3: Cross multiply
    577,120.30x = 865,695.30 × 273,443.20
  4. Step 4: Simplify right side
    577,120.30x = 236,718,493,056.96
  5. Step 5: Solve for x
    x = 236,718,493,056.96/577,120.30
  6. Step 6: Final answer
    x = 410,171.84

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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.