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Finding the Fourth Proportional to 1,770,293,728.90, 2,655,440,593.35 and 851,963,680.90

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Solution

The fourth proportional to 1,770,293,728.90, 2,655,440,593.35 and 851,963,680.90 is: 1,277,945,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770,293,728.90 : 2,655,440,593.35 = 851,963,680.90 : x
  2. Step 2: Convert to fraction form
    1,770,293,728.90/2,655,440,593.35 = 851,963,680.90/x
  3. Step 3: Cross multiply
    1,770,293,728.90x = 2,655,440,593.35 × 851,963,680.90
  4. Step 4: Simplify right side
    1,770,293,728.90x = 2,262,338,942,321,745,920
  5. Step 5: Solve for x
    x = 2,262,338,942,321,745,920/1,770,293,728.90
  6. Step 6: Final answer
    x = 1,277,945,521.35

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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.