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Finding the Fourth Proportional to 629,855,998.65, 944,783,997.98 and 319,919,607.45

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Solution

The fourth proportional to 629,855,998.65, 944,783,997.98 and 319,919,607.45 is: 479,879,411.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,855,998.65 : 944,783,997.98 = 319,919,607.45 : x
  2. Step 2: Convert to fraction form
    629,855,998.65/944,783,997.98 = 319,919,607.45/x
  3. Step 3: Cross multiply
    629,855,998.65x = 944,783,997.98 × 319,919,607.45
  4. Step 4: Simplify right side
    629,855,998.65x = 302,254,925,757,203,584
  5. Step 5: Solve for x
    x = 302,254,925,757,203,584/629,855,998.65
  6. Step 6: Final answer
    x = 479,879,411.18

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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.