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Finding the Fourth Proportional to 647,694,316.60, 971,541,474.90 and 634,780,300.30

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Solution

The fourth proportional to 647,694,316.60, 971,541,474.90 and 634,780,300.30 is: 952,170,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,694,316.60 : 971,541,474.90 = 634,780,300.30 : x
  2. Step 2: Convert to fraction form
    647,694,316.60/971,541,474.90 = 634,780,300.30/x
  3. Step 3: Cross multiply
    647,694,316.60x = 971,541,474.90 × 634,780,300.30
  4. Step 4: Simplify right side
    647,694,316.60x = 616,715,389,190,926,848
  5. Step 5: Solve for x
    x = 616,715,389,190,926,848/647,694,316.60
  6. Step 6: Final answer
    x = 952,170,450.45

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Double scale
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Similar ratio
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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.