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Finding the Fourth Proportional to 366,912,992.60, 550,369,488.90 and 338,852,907.80

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Solution

The fourth proportional to 366,912,992.60, 550,369,488.90 and 338,852,907.80 is: 508,279,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,912,992.60 : 550,369,488.90 = 338,852,907.80 : x
  2. Step 2: Convert to fraction form
    366,912,992.60/550,369,488.90 = 338,852,907.80/x
  3. Step 3: Cross multiply
    366,912,992.60x = 550,369,488.90 × 338,852,907.80
  4. Step 4: Simplify right side
    366,912,992.60x = 186,494,301,678,164,832
  5. Step 5: Solve for x
    x = 186,494,301,678,164,832/366,912,992.60
  6. Step 6: Final answer
    x = 508,279,361.70

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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.