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Finding the Fourth Proportional to 636,406.56, 954,609.44 and 187,131.12

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Solution

The fourth proportional to 636,406.56, 954,609.44 and 187,131.12 is: 280,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,406.56 : 954,609.44 = 187,131.12 : x
  2. Step 2: Convert to fraction form
    636,406.56/954,609.44 = 187,131.12/x
  3. Step 3: Cross multiply
    636,406.56x = 954,609.44 × 187,131.12
  4. Step 4: Simplify right side
    636,406.56x = 178,637,133,669.77
  5. Step 5: Solve for x
    x = 178,637,133,669.77/636,406.56
  6. Step 6: Final answer
    x = 280,696.56

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Double scale
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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.