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Finding the Fourth Proportional to 492,817.20, 739,225.80 and 177,284.40

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Solution

The fourth proportional to 492,817.20, 739,225.80 and 177,284.40 is: 265,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,817.20 : 739,225.80 = 177,284.40 : x
  2. Step 2: Convert to fraction form
    492,817.20/739,225.80 = 177,284.40/x
  3. Step 3: Cross multiply
    492,817.20x = 739,225.80 × 177,284.40
  4. Step 4: Simplify right side
    492,817.20x = 131,053,202,417.52
  5. Step 5: Solve for x
    x = 131,053,202,417.52/492,817.20
  6. Step 6: Final answer
    x = 265,926.60

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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.