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Finding the Fourth Proportional to 2,640,654,637.20, 3,952,372,611.60 and 2,640,654,637.20

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Solution

The fourth proportional to 2,640,654,637.20, 3,952,372,611.60 and 2,640,654,637.20 is: 3,952,372,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,654,637.20 : 3,952,372,611.60 = 2,640,654,637.20 : x
  2. Step 2: Convert to fraction form
    2,640,654,637.20/3,952,372,611.60 = 2,640,654,637.20/x
  3. Step 3: Cross multiply
    2,640,654,637.20x = 3,952,372,611.60 × 2,640,654,637.20
  4. Step 4: Simplify right side
    2,640,654,637.20x = 10,436,851,064,763,813,888
  5. Step 5: Solve for x
    x = 10,436,851,064,763,813,888/2,640,654,637.20
  6. Step 6: Final answer
    x = 3,952,372,611.60

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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.