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Finding the Fourth Proportional to 493,252.70, 739,879.05 and 404,606.30

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Solution

The fourth proportional to 493,252.70, 739,879.05 and 404,606.30 is: 606,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,252.70 : 739,879.05 = 404,606.30 : x
  2. Step 2: Convert to fraction form
    493,252.70/739,879.05 = 404,606.30/x
  3. Step 3: Cross multiply
    493,252.70x = 739,879.05 × 404,606.30
  4. Step 4: Simplify right side
    493,252.70x = 299,359,724,868.02
  5. Step 5: Solve for x
    x = 299,359,724,868.02/493,252.70
  6. Step 6: Final answer
    x = 606,909.45

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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.