Home / 638,534.53-957,155.01-414,037.36

Finding the Fourth Proportional to 638,534.53, 957,155.01 and 414,037.36

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Solution

The fourth proportional to 638,534.53, 957,155.01 and 414,037.36 is: 620,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,534.53 : 957,155.01 = 414,037.36 : x
  2. Step 2: Convert to fraction form
    638,534.53/957,155.01 = 414,037.36/x
  3. Step 3: Cross multiply
    638,534.53x = 957,155.01 × 414,037.36
  4. Step 4: Simplify right side
    638,534.53x = 396,297,933,451.17
  5. Step 5: Solve for x
    x = 396,297,933,451.17/638,534.53
  6. Step 6: Final answer
    x = 620,636.65

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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.