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Finding the Fourth Proportional to 590,722.20, 885,062.70 and 274,530.60

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Solution

The fourth proportional to 590,722.20, 885,062.70 and 274,530.60 is: 411,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,722.20 : 885,062.70 = 274,530.60 : x
  2. Step 2: Convert to fraction form
    590,722.20/885,062.70 = 274,530.60/x
  3. Step 3: Cross multiply
    590,722.20x = 885,062.70 × 274,530.60
  4. Step 4: Simplify right side
    590,722.20x = 242,976,794,068.62
  5. Step 5: Solve for x
    x = 242,976,794,068.62/590,722.20
  6. Step 6: Final answer
    x = 411,321.59

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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.