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Finding the Fourth Proportional to 492,756.60, 739,134.90 and 334,126.20

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Solution

The fourth proportional to 492,756.60, 739,134.90 and 334,126.20 is: 501,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,756.60 : 739,134.90 = 334,126.20 : x
  2. Step 2: Convert to fraction form
    492,756.60/739,134.90 = 334,126.20/x
  3. Step 3: Cross multiply
    492,756.60x = 739,134.90 × 334,126.20
  4. Step 4: Simplify right side
    492,756.60x = 246,964,335,424.38
  5. Step 5: Solve for x
    x = 246,964,335,424.38/492,756.60
  6. Step 6: Final answer
    x = 501,189.30

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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.