Home / 910,635.87-1,256,841.96-543,136.56

Finding the Fourth Proportional to 910,635.87, 1,256,841.96 and 543,136.56

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Solution

The fourth proportional to 910,635.87, 1,256,841.96 and 543,136.56 is: 749,626.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,635.87 : 1,256,841.96 = 543,136.56 : x
  2. Step 2: Convert to fraction form
    910,635.87/1,256,841.96 = 543,136.56/x
  3. Step 3: Cross multiply
    910,635.87x = 1,256,841.96 × 543,136.56
  4. Step 4: Simplify right side
    910,635.87x = 682,636,818,618.06
  5. Step 5: Solve for x
    x = 682,636,818,618.06/910,635.87
  6. Step 6: Final answer
    x = 749,626.54

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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.