Home / 827,136.30-1,240,920.45-266,184.30

Finding the Fourth Proportional to 827,136.30, 1,240,920.45 and 266,184.30

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Solution

The fourth proportional to 827,136.30, 1,240,920.45 and 266,184.30 is: 399,345.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,136.30 : 1,240,920.45 = 266,184.30 : x
  2. Step 2: Convert to fraction form
    827,136.30/1,240,920.45 = 266,184.30/x
  3. Step 3: Cross multiply
    827,136.30x = 1,240,920.45 × 266,184.30
  4. Step 4: Simplify right side
    827,136.30x = 330,313,541,338.94
  5. Step 5: Solve for x
    x = 330,313,541,338.94/827,136.30
  6. Step 6: Final answer
    x = 399,345.96

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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.