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Finding the Fourth Proportional to 636,266.40, 954,406.20 and 186,995.28

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Solution

The fourth proportional to 636,266.40, 954,406.20 and 186,995.28 is: 280,494.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,266.40 : 954,406.20 = 186,995.28 : x
  2. Step 2: Convert to fraction form
    636,266.40/954,406.20 = 186,995.28/x
  3. Step 3: Cross multiply
    636,266.40x = 954,406.20 × 186,995.28
  4. Step 4: Simplify right side
    636,266.40x = 178,469,454,602.74
  5. Step 5: Solve for x
    x = 178,469,454,602.74/636,266.40
  6. Step 6: Final answer
    x = 280,494.86

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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.