Home / 683,491.87-1,025,234.09-278,682.50

Finding the Fourth Proportional to 683,491.87, 1,025,234.09 and 278,682.50

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Solution

The fourth proportional to 683,491.87, 1,025,234.09 and 278,682.50 is: 418,022.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,491.87 : 1,025,234.09 = 278,682.50 : x
  2. Step 2: Convert to fraction form
    683,491.87/1,025,234.09 = 278,682.50/x
  3. Step 3: Cross multiply
    683,491.87x = 1,025,234.09 × 278,682.50
  4. Step 4: Simplify right side
    683,491.87x = 285,714,803,068.75
  5. Step 5: Solve for x
    x = 285,714,803,068.75/683,491.87
  6. Step 6: Final answer
    x = 418,022.24

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Double scale
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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.