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Finding the Fourth Proportional to 984,518.10, 1,476,777.15 and 978,297.30

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Solution

The fourth proportional to 984,518.10, 1,476,777.15 and 978,297.30 is: 1,467,445.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,518.10 : 1,476,777.15 = 978,297.30 : x
  2. Step 2: Convert to fraction form
    984,518.10/1,476,777.15 = 978,297.30/x
  3. Step 3: Cross multiply
    984,518.10x = 1,476,777.15 × 978,297.30
  4. Step 4: Simplify right side
    984,518.10x = 1,444,727,098,546.70
  5. Step 5: Solve for x
    x = 1,444,727,098,546.70/984,518.10
  6. Step 6: Final answer
    x = 1,467,445.95

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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.