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Finding the Fourth Proportional to 656,515.71, 984,878.55 and 277,440.12

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Solution

The fourth proportional to 656,515.71, 984,878.55 and 277,440.12 is: 416,204.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,515.71 : 984,878.55 = 277,440.12 : x
  2. Step 2: Convert to fraction form
    656,515.71/984,878.55 = 277,440.12/x
  3. Step 3: Cross multiply
    656,515.71x = 984,878.55 × 277,440.12
  4. Step 4: Simplify right side
    656,515.71x = 273,244,823,097.43
  5. Step 5: Solve for x
    x = 273,244,823,097.43/656,515.71
  6. Step 6: Final answer
    x = 416,204.55

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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.