Home / 629,857,643.40-944,786,465.10-399,991,696.20

Finding the Fourth Proportional to 629,857,643.40, 944,786,465.10 and 399,991,696.20

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Solution

The fourth proportional to 629,857,643.40, 944,786,465.10 and 399,991,696.20 is: 599,987,544.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,643.40 : 944,786,465.10 = 399,991,696.20 : x
  2. Step 2: Convert to fraction form
    629,857,643.40/944,786,465.10 = 399,991,696.20/x
  3. Step 3: Cross multiply
    629,857,643.40x = 944,786,465.10 × 399,991,696.20
  4. Step 4: Simplify right side
    629,857,643.40x = 377,906,740,722,151,104
  5. Step 5: Solve for x
    x = 377,906,740,722,151,104/629,857,643.40
  6. Step 6: Final answer
    x = 599,987,544.30

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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.