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Finding the Fourth Proportional to 663,735,809.20, 994,753,408.20 and 590,609,527.60

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Solution

The fourth proportional to 663,735,809.20, 994,753,408.20 and 590,609,527.60 is: 885,157,667.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,735,809.20 : 994,753,408.20 = 590,609,527.60 : x
  2. Step 2: Convert to fraction form
    663,735,809.20/994,753,408.20 = 590,609,527.60/x
  3. Step 3: Cross multiply
    663,735,809.20x = 994,753,408.20 × 590,609,527.60
  4. Step 4: Simplify right side
    663,735,809.20x = 587,510,840,495,491,968
  5. Step 5: Solve for x
    x = 587,510,840,495,491,968/663,735,809.20
  6. Step 6: Final answer
    x = 885,157,667.18

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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.