Home / 664,143,211.20-996,214,816.80-626,519,812.80

Finding the Fourth Proportional to 664,143,211.20, 996,214,816.80 and 626,519,812.80

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Solution

The fourth proportional to 664,143,211.20, 996,214,816.80 and 626,519,812.80 is: 939,779,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,143,211.20 : 996,214,816.80 = 626,519,812.80 : x
  2. Step 2: Convert to fraction form
    664,143,211.20/996,214,816.80 = 626,519,812.80/x
  3. Step 3: Cross multiply
    664,143,211.20x = 996,214,816.80 × 626,519,812.80
  4. Step 4: Simplify right side
    664,143,211.20x = 624,148,320,530,122,240
  5. Step 5: Solve for x
    x = 624,148,320,530,122,240/664,143,211.20
  6. Step 6: Final answer
    x = 939,779,719.20

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Double scale
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Similar ratio
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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.