Home / 926,329.30-1,388,457.15-393,759.70

Finding the Fourth Proportional to 926,329.30, 1,388,457.15 and 393,759.70

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Solution

The fourth proportional to 926,329.30, 1,388,457.15 and 393,759.70 is: 590,198.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,329.30 : 1,388,457.15 = 393,759.70 : x
  2. Step 2: Convert to fraction form
    926,329.30/1,388,457.15 = 393,759.70/x
  3. Step 3: Cross multiply
    926,329.30x = 1,388,457.15 × 393,759.70
  4. Step 4: Simplify right side
    926,329.30x = 546,718,470,846.86
  5. Step 5: Solve for x
    x = 546,718,470,846.86/926,329.30
  6. Step 6: Final answer
    x = 590,198.83

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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.