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Finding the Fourth Proportional to 629,857,999.60, 944,786,999.40 and 492,108,492.40

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Solution

The fourth proportional to 629,857,999.60, 944,786,999.40 and 492,108,492.40 is: 738,162,738.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,999.60 : 944,786,999.40 = 492,108,492.40 : x
  2. Step 2: Convert to fraction form
    629,857,999.60/944,786,999.40 = 492,108,492.40/x
  3. Step 3: Cross multiply
    629,857,999.60x = 944,786,999.40 × 492,108,492.40
  4. Step 4: Simplify right side
    629,857,999.60x = 464,937,705,913,853,696
  5. Step 5: Solve for x
    x = 464,937,705,913,853,696/629,857,999.60
  6. Step 6: Final answer
    x = 738,162,738.60

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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.