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Finding the Fourth Proportional to 633,961,515.20, 885,732,136 and 633,961,515.20

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Solution

The fourth proportional to 633,961,515.20, 885,732,136 and 633,961,515.20 is: 885,732,136

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,961,515.20 : 885,732,136 = 633,961,515.20 : x
  2. Step 2: Convert to fraction form
    633,961,515.20/885,732,136 = 633,961,515.20/x
  3. Step 3: Cross multiply
    633,961,515.20x = 885,732,136 × 633,961,515.20
  4. Step 4: Simplify right side
    633,961,515.20x = 561,520,086,999,892,480
  5. Step 5: Solve for x
    x = 561,520,086,999,892,480/633,961,515.20
  6. Step 6: Final answer
    x = 885,732,136

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.