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Finding the Fourth Proportional to 633,866,187.81, 874,732,116.96 and 351,605,706.39

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Solution

The fourth proportional to 633,866,187.81, 874,732,116.96 and 351,605,706.39 is: 485,214,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,866,187.81 : 874,732,116.96 = 351,605,706.39 : x
  2. Step 2: Convert to fraction form
    633,866,187.81/874,732,116.96 = 351,605,706.39/x
  3. Step 3: Cross multiply
    633,866,187.81x = 874,732,116.96 × 351,605,706.39
  4. Step 4: Simplify right side
    633,866,187.81x = 307,560,803,885,740,928
  5. Step 5: Solve for x
    x = 307,560,803,885,740,928/633,866,187.81
  6. Step 6: Final answer
    x = 485,214,087.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.