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Finding the Fourth Proportional to 493,099.70, 739,649.55 and 404,453.30

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Solution

The fourth proportional to 493,099.70, 739,649.55 and 404,453.30 is: 606,679.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,099.70 : 739,649.55 = 404,453.30 : x
  2. Step 2: Convert to fraction form
    493,099.70/739,649.55 = 404,453.30/x
  3. Step 3: Cross multiply
    493,099.70x = 739,649.55 × 404,453.30
  4. Step 4: Simplify right side
    493,099.70x = 299,153,701,341.02
  5. Step 5: Solve for x
    x = 299,153,701,341.02/493,099.70
  6. Step 6: Final answer
    x = 606,679.95

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Double scale
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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.