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Finding the Fourth Proportional to 633,914,482.98, 950,936,949 and 219,390,576.78

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Solution

The fourth proportional to 633,914,482.98, 950,936,949 and 219,390,576.78 is: 329,108,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,914,482.98 : 950,936,949 = 219,390,576.78 : x
  2. Step 2: Convert to fraction form
    633,914,482.98/950,936,949 = 219,390,576.78/x
  3. Step 3: Cross multiply
    633,914,482.98x = 950,936,949 × 219,390,576.78
  4. Step 4: Simplify right side
    633,914,482.98x = 208,626,605,722,523,456
  5. Step 5: Solve for x
    x = 208,626,605,722,523,456/633,914,482.98
  6. Step 6: Final answer
    x = 329,108,438.64

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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.