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Finding the Fourth Proportional to 995,874,755.30, 1,492,536,674.55 and 764,697,920.30

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Solution

The fourth proportional to 995,874,755.30, 1,492,536,674.55 and 764,697,920.30 is: 1,146,067,499.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,874,755.30 : 1,492,536,674.55 = 764,697,920.30 : x
  2. Step 2: Convert to fraction form
    995,874,755.30/1,492,536,674.55 = 764,697,920.30/x
  3. Step 3: Cross multiply
    995,874,755.30x = 1,492,536,674.55 × 764,697,920.30
  4. Step 4: Simplify right side
    995,874,755.30x = 1,141,339,690,999,862,784
  5. Step 5: Solve for x
    x = 1,141,339,690,999,862,784/995,874,755.30
  6. Step 6: Final answer
    x = 1,146,067,499.88

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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.