Home / 910,630.30-1,256,834.30-543,131

Finding the Fourth Proportional to 910,630.30, 1,256,834.30 and 543,131

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Solution

The fourth proportional to 910,630.30, 1,256,834.30 and 543,131 is: 749,618.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,630.30 : 1,256,834.30 = 543,131 : x
  2. Step 2: Convert to fraction form
    910,630.30/1,256,834.30 = 543,131/x
  3. Step 3: Cross multiply
    910,630.30x = 1,256,834.30 × 543,131
  4. Step 4: Simplify right side
    910,630.30x = 682,625,670,193.30
  5. Step 5: Solve for x
    x = 682,625,670,193.30/910,630.30
  6. Step 6: Final answer
    x = 749,618.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.