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Finding the Fourth Proportional to 663,258,674.67, 994,363,800.47 and 331,095,209.97

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Solution

The fourth proportional to 663,258,674.67, 994,363,800.47 and 331,095,209.97 is: 496,381,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,258,674.67 : 994,363,800.47 = 331,095,209.97 : x
  2. Step 2: Convert to fraction form
    663,258,674.67/994,363,800.47 = 331,095,209.97/x
  3. Step 3: Cross multiply
    663,258,674.67x = 994,363,800.47 × 331,095,209.97
  4. Step 4: Simplify right side
    663,258,674.67x = 329,229,091,301,526,400
  5. Step 5: Solve for x
    x = 329,229,091,301,526,400/663,258,674.67
  6. Step 6: Final answer
    x = 496,381,131.34

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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.