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Finding the Fourth Proportional to 453,879.40, 680,819.10 and 154,697.80

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Solution

The fourth proportional to 453,879.40, 680,819.10 and 154,697.80 is: 232,046.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,879.40 : 680,819.10 = 154,697.80 : x
  2. Step 2: Convert to fraction form
    453,879.40/680,819.10 = 154,697.80/x
  3. Step 3: Cross multiply
    453,879.40x = 680,819.10 × 154,697.80
  4. Step 4: Simplify right side
    453,879.40x = 105,321,216,967.98
  5. Step 5: Solve for x
    x = 105,321,216,967.98/453,879.40
  6. Step 6: Final answer
    x = 232,046.70

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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.