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Finding the Fourth Proportional to 6,971,906.80, 10,457,860.20 and 4,704,425.20

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Solution

The fourth proportional to 6,971,906.80, 10,457,860.20 and 4,704,425.20 is: 7,056,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971,906.80 : 10,457,860.20 = 4,704,425.20 : x
  2. Step 2: Convert to fraction form
    6,971,906.80/10,457,860.20 = 4,704,425.20/x
  3. Step 3: Cross multiply
    6,971,906.80x = 10,457,860.20 × 4,704,425.20
  4. Step 4: Simplify right side
    6,971,906.80x = 49,198,221,062,957.04
  5. Step 5: Solve for x
    x = 49,198,221,062,957.04/6,971,906.80
  6. Step 6: Final answer
    x = 7,056,637.80

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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.