Home / 605,424.10-908,136.15-540,105.70

Finding the Fourth Proportional to 605,424.10, 908,136.15 and 540,105.70

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Solution

The fourth proportional to 605,424.10, 908,136.15 and 540,105.70 is: 810,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,424.10 : 908,136.15 = 540,105.70 : x
  2. Step 2: Convert to fraction form
    605,424.10/908,136.15 = 540,105.70/x
  3. Step 3: Cross multiply
    605,424.10x = 908,136.15 × 540,105.70
  4. Step 4: Simplify right side
    605,424.10x = 490,489,510,991.06
  5. Step 5: Solve for x
    x = 490,489,510,991.06/605,424.10
  6. Step 6: Final answer
    x = 810,158.55

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Similar ratio
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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.