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Finding the Fourth Proportional to 959,659,439.74, 1,439,489,159.61 and 959,659,439.74

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Solution

The fourth proportional to 959,659,439.74, 1,439,489,159.61 and 959,659,439.74 is: 1,439,489,159.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,659,439.74 : 1,439,489,159.61 = 959,659,439.74 : x
  2. Step 2: Convert to fraction form
    959,659,439.74/1,439,489,159.61 = 959,659,439.74/x
  3. Step 3: Cross multiply
    959,659,439.74x = 1,439,489,159.61 × 959,659,439.74
  4. Step 4: Simplify right side
    959,659,439.74x = 1,381,419,360,415,890,432
  5. Step 5: Solve for x
    x = 1,381,419,360,415,890,432/959,659,439.74
  6. Step 6: Final answer
    x = 1,439,489,159.61

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1.5x scale

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.