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Finding the Fourth Proportional to 607,338,644.40, 911,007,966.60 and 444,901,114.80

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Solution

The fourth proportional to 607,338,644.40, 911,007,966.60 and 444,901,114.80 is: 667,351,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,338,644.40 : 911,007,966.60 = 444,901,114.80 : x
  2. Step 2: Convert to fraction form
    607,338,644.40/911,007,966.60 = 444,901,114.80/x
  3. Step 3: Cross multiply
    607,338,644.40x = 911,007,966.60 × 444,901,114.80
  4. Step 4: Simplify right side
    607,338,644.40x = 405,308,459,932,021,184
  5. Step 5: Solve for x
    x = 405,308,459,932,021,184/607,338,644.40
  6. Step 6: Final answer
    x = 667,351,672.20

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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.