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Finding the Fourth Proportional to 526,477.05, 789,715.61 and 171,491.06

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Solution

The fourth proportional to 526,477.05, 789,715.61 and 171,491.06 is: 257,236.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,477.05 : 789,715.61 = 171,491.06 : x
  2. Step 2: Convert to fraction form
    526,477.05/789,715.61 = 171,491.06/x
  3. Step 3: Cross multiply
    526,477.05x = 789,715.61 × 171,491.06
  4. Step 4: Simplify right side
    526,477.05x = 135,429,162,251.41
  5. Step 5: Solve for x
    x = 135,429,162,251.41/526,477.05
  6. Step 6: Final answer
    x = 257,236.59

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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.