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Finding the Fourth Proportional to 548,963,907.96, 757,583,356.02 and 298,078,873.26

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Solution

The fourth proportional to 548,963,907.96, 757,583,356.02 and 298,078,873.26 is: 411,355,992.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,963,907.96 : 757,583,356.02 = 298,078,873.26 : x
  2. Step 2: Convert to fraction form
    548,963,907.96/757,583,356.02 = 298,078,873.26/x
  3. Step 3: Cross multiply
    548,963,907.96x = 757,583,356.02 × 298,078,873.26
  4. Step 4: Simplify right side
    548,963,907.96x = 225,819,593,162,971,040
  5. Step 5: Solve for x
    x = 225,819,593,162,971,040/548,963,907.96
  6. Step 6: Final answer
    x = 411,355,992.42

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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.