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Finding the Fourth Proportional to 629,858,409.80, 944,787,614.70 and 476,803,401.80

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Solution

The fourth proportional to 629,858,409.80, 944,787,614.70 and 476,803,401.80 is: 715,205,102.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,858,409.80 : 944,787,614.70 = 476,803,401.80 : x
  2. Step 2: Convert to fraction form
    629,858,409.80/944,787,614.70 = 476,803,401.80/x
  3. Step 3: Cross multiply
    629,858,409.80x = 944,787,614.70 × 476,803,401.80
  4. Step 4: Simplify right side
    629,858,409.80x = 450,477,948,667,467,712
  5. Step 5: Solve for x
    x = 450,477,948,667,467,712/629,858,409.80
  6. Step 6: Final answer
    x = 715,205,102.70

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Double scale
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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.