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Finding the Fourth Proportional to 440,999,772.86, 661,599,317.00 and 145,894,200.49

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Solution

The fourth proportional to 440,999,772.86, 661,599,317.00 and 145,894,200.49 is: 218,874,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,999,772.86 : 661,599,317.00 = 145,894,200.49 : x
  2. Step 2: Convert to fraction form
    440,999,772.86/661,599,317.00 = 145,894,200.49/x
  3. Step 3: Cross multiply
    440,999,772.86x = 661,599,317.00 × 145,894,200.49
  4. Step 4: Simplify right side
    440,999,772.86x = 96,523,503,399,636,816
  5. Step 5: Solve for x
    x = 96,523,503,399,636,816/440,999,772.86
  6. Step 6: Final answer
    x = 218,874,270.10

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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.