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Finding the Fourth Proportional to 629,858,999.70, 944,788,499.55 and 499,762,242.90

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Solution

The fourth proportional to 629,858,999.70, 944,788,499.55 and 499,762,242.90 is: 749,643,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,858,999.70 : 944,788,499.55 = 499,762,242.90 : x
  2. Step 2: Convert to fraction form
    629,858,999.70/944,788,499.55 = 499,762,242.90/x
  3. Step 3: Cross multiply
    629,858,999.70x = 944,788,499.55 × 499,762,242.90
  4. Step 4: Simplify right side
    629,858,999.70x = 472,169,619,601,233,600
  5. Step 5: Solve for x
    x = 472,169,619,601,233,600/629,858,999.70
  6. Step 6: Final answer
    x = 749,643,364.35

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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.