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Finding the Fourth Proportional to 613,976,401.80, 920,964,602.70 and 337,520,793.60

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Solution

The fourth proportional to 613,976,401.80, 920,964,602.70 and 337,520,793.60 is: 506,281,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,976,401.80 : 920,964,602.70 = 337,520,793.60 : x
  2. Step 2: Convert to fraction form
    613,976,401.80/920,964,602.70 = 337,520,793.60/x
  3. Step 3: Cross multiply
    613,976,401.80x = 920,964,602.70 × 337,520,793.60
  4. Step 4: Simplify right side
    613,976,401.80x = 310,844,703,580,812,736
  5. Step 5: Solve for x
    x = 310,844,703,580,812,736/613,976,401.80
  6. Step 6: Final answer
    x = 506,281,190.40

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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.