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Finding the Fourth Proportional to 492,821.70, 739,232.55 and 492,821.70

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Solution

The fourth proportional to 492,821.70, 739,232.55 and 492,821.70 is: 739,232.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,821.70 : 739,232.55 = 492,821.70 : x
  2. Step 2: Convert to fraction form
    492,821.70/739,232.55 = 492,821.70/x
  3. Step 3: Cross multiply
    492,821.70x = 739,232.55 × 492,821.70
  4. Step 4: Simplify right side
    492,821.70x = 364,309,841,986.34
  5. Step 5: Solve for x
    x = 364,309,841,986.34/492,821.70
  6. Step 6: Final answer
    x = 739,232.55

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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.