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Finding the Fourth Proportional to 984,706.20, 1,375,439.40 and 984,706.20

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Solution

The fourth proportional to 984,706.20, 1,375,439.40 and 984,706.20 is: 1,375,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,706.20 : 1,375,439.40 = 984,706.20 : x
  2. Step 2: Convert to fraction form
    984,706.20/1,375,439.40 = 984,706.20/x
  3. Step 3: Cross multiply
    984,706.20x = 1,375,439.40 × 984,706.20
  4. Step 4: Simplify right side
    984,706.20x = 1,354,403,704,904.28
  5. Step 5: Solve for x
    x = 1,354,403,704,904.28/984,706.20
  6. Step 6: Final answer
    x = 1,375,439.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.