Home / 910,626.67-1,256,829.30-543,127.36

Finding the Fourth Proportional to 910,626.67, 1,256,829.30 and 543,127.36

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Solution

The fourth proportional to 910,626.67, 1,256,829.30 and 543,127.36 is: 749,613.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,626.67 : 1,256,829.30 = 543,127.36 : x
  2. Step 2: Convert to fraction form
    910,626.67/1,256,829.30 = 543,127.36/x
  3. Step 3: Cross multiply
    910,626.67x = 1,256,829.30 × 543,127.36
  4. Step 4: Simplify right side
    910,626.67x = 682,618,383,432.58
  5. Step 5: Solve for x
    x = 682,618,383,432.58/910,626.67
  6. Step 6: Final answer
    x = 749,613.87

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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.