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Finding the Fourth Proportional to 395,874,136.80, 593,960,504.40 and 191,583,064.80

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Solution

The fourth proportional to 395,874,136.80, 593,960,504.40 and 191,583,064.80 is: 287,446,850.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,874,136.80 : 593,960,504.40 = 191,583,064.80 : x
  2. Step 2: Convert to fraction form
    395,874,136.80/593,960,504.40 = 191,583,064.80/x
  3. Step 3: Cross multiply
    395,874,136.80x = 593,960,504.40 × 191,583,064.80
  4. Step 4: Simplify right side
    395,874,136.80x = 113,792,773,803,105,888
  5. Step 5: Solve for x
    x = 113,792,773,803,105,888/395,874,136.80
  6. Step 6: Final answer
    x = 287,446,850.46

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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.