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Finding the Fourth Proportional to 663,258,679.22, 994,363,807.28 and 331,095,214.52

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Solution

The fourth proportional to 663,258,679.22, 994,363,807.28 and 331,095,214.52 is: 496,381,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,258,679.22 : 994,363,807.28 = 331,095,214.52 : x
  2. Step 2: Convert to fraction form
    663,258,679.22/994,363,807.28 = 331,095,214.52/x
  3. Step 3: Cross multiply
    663,258,679.22x = 994,363,807.28 × 331,095,214.52
  4. Step 4: Simplify right side
    663,258,679.22x = 329,229,098,082,295,488
  5. Step 5: Solve for x
    x = 329,229,098,082,295,488/663,258,679.22
  6. Step 6: Final answer
    x = 496,381,138.16

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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.