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Finding the Fourth Proportional to 629,856,246.60, 944,784,369.90 and 307,369,974.60

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Solution

The fourth proportional to 629,856,246.60, 944,784,369.90 and 307,369,974.60 is: 461,054,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,246.60 : 944,784,369.90 = 307,369,974.60 : x
  2. Step 2: Convert to fraction form
    629,856,246.60/944,784,369.90 = 307,369,974.60/x
  3. Step 3: Cross multiply
    629,856,246.60x = 944,784,369.90 × 307,369,974.60
  4. Step 4: Simplify right side
    629,856,246.60x = 290,398,347,778,640,000
  5. Step 5: Solve for x
    x = 290,398,347,778,640,000/629,856,246.60
  6. Step 6: Final answer
    x = 461,054,961.90

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Double scale
Find fourth proportional to 629,856,247.60, 944,784,371.40 and 307,369,975.60
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.