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Finding the Fourth Proportional to 1,085,659,637.70, 1,628,489,456.55 and 1,085,659,637.70

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Solution

The fourth proportional to 1,085,659,637.70, 1,628,489,456.55 and 1,085,659,637.70 is: 1,628,489,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,659,637.70 : 1,628,489,456.55 = 1,085,659,637.70 : x
  2. Step 2: Convert to fraction form
    1,085,659,637.70/1,628,489,456.55 = 1,085,659,637.70/x
  3. Step 3: Cross multiply
    1,085,659,637.70x = 1,628,489,456.55 × 1,085,659,637.70
  4. Step 4: Simplify right side
    1,085,659,637.70x = 1,767,985,273,396,343,040
  5. Step 5: Solve for x
    x = 1,767,985,273,396,343,040/1,085,659,637.70
  6. Step 6: Final answer
    x = 1,628,489,456.55

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Double scale
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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.