Home / 638,852.20-957,663.90-496,618.60

Finding the Fourth Proportional to 638,852.20, 957,663.90 and 496,618.60

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Solution

The fourth proportional to 638,852.20, 957,663.90 and 496,618.60 is: 744,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,852.20 : 957,663.90 = 496,618.60 : x
  2. Step 2: Convert to fraction form
    638,852.20/957,663.90 = 496,618.60/x
  3. Step 3: Cross multiply
    638,852.20x = 957,663.90 × 496,618.60
  4. Step 4: Simplify right side
    638,852.20x = 475,593,705,288.54
  5. Step 5: Solve for x
    x = 475,593,705,288.54/638,852.20
  6. Step 6: Final answer
    x = 744,450.29

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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.