Home / 913,136.56-1,260,082.46-499,664.39

Finding the Fourth Proportional to 913,136.56, 1,260,082.46 and 499,664.39

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Solution

The fourth proportional to 913,136.56, 1,260,082.46 and 499,664.39 is: 689,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,136.56 : 1,260,082.46 = 499,664.39 : x
  2. Step 2: Convert to fraction form
    913,136.56/1,260,082.46 = 499,664.39/x
  3. Step 3: Cross multiply
    913,136.56x = 1,260,082.46 × 499,664.39
  4. Step 4: Simplify right side
    913,136.56x = 629,618,328,674.35
  5. Step 5: Solve for x
    x = 629,618,328,674.35/913,136.56
  6. Step 6: Final answer
    x = 689,511.69

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Double scale
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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.