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Finding the Fourth Proportional to 617,958,021.88, 926,793,339.54 and 229,963,576.60

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Solution

The fourth proportional to 617,958,021.88, 926,793,339.54 and 229,963,576.60 is: 344,891,891.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,958,021.88 : 926,793,339.54 = 229,963,576.60 : x
  2. Step 2: Convert to fraction form
    617,958,021.88/926,793,339.54 = 229,963,576.60/x
  3. Step 3: Cross multiply
    617,958,021.88x = 926,793,339.54 × 229,963,576.60
  4. Step 4: Simplify right side
    617,958,021.88x = 213,128,711,129,676,576
  5. Step 5: Solve for x
    x = 213,128,711,129,676,576/617,958,021.88
  6. Step 6: Final answer
    x = 344,891,891.66

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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.