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Finding the Fourth Proportional to 399,151,010.70, 598,726,516.05 and 399,151,010.70

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Solution

The fourth proportional to 399,151,010.70, 598,726,516.05 and 399,151,010.70 is: 598,726,516.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,151,010.70 : 598,726,516.05 = 399,151,010.70 : x
  2. Step 2: Convert to fraction form
    399,151,010.70/598,726,516.05 = 399,151,010.70/x
  3. Step 3: Cross multiply
    399,151,010.70x = 598,726,516.05 × 399,151,010.70
  4. Step 4: Simplify right side
    399,151,010.70x = 238,982,294,014,247,232
  5. Step 5: Solve for x
    x = 238,982,294,014,247,232/399,151,010.70
  6. Step 6: Final answer
    x = 598,726,516.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.