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Finding the Fourth Proportional to 620,846.52, 931,269.80 and 177,614.52

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Solution

The fourth proportional to 620,846.52, 931,269.80 and 177,614.52 is: 266,421.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,846.52 : 931,269.80 = 177,614.52 : x
  2. Step 2: Convert to fraction form
    620,846.52/931,269.80 = 177,614.52/x
  3. Step 3: Cross multiply
    620,846.52x = 931,269.80 × 177,614.52
  4. Step 4: Simplify right side
    620,846.52x = 165,407,038,517.50
  5. Step 5: Solve for x
    x = 165,407,038,517.50/620,846.52
  6. Step 6: Final answer
    x = 266,421.79

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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.