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Finding the Fourth Proportional to 493,286.60, 739,929.90 and 304,329.80

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Solution

The fourth proportional to 493,286.60, 739,929.90 and 304,329.80 is: 456,494.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,286.60 : 739,929.90 = 304,329.80 : x
  2. Step 2: Convert to fraction form
    493,286.60/739,929.90 = 304,329.80/x
  3. Step 3: Cross multiply
    493,286.60x = 739,929.90 × 304,329.80
  4. Step 4: Simplify right side
    493,286.60x = 225,182,718,481.02
  5. Step 5: Solve for x
    x = 225,182,718,481.02/493,286.60
  6. Step 6: Final answer
    x = 456,494.70

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Similar ratio
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1.5x scale

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.