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Finding the Fourth Proportional to 492,777.10, 739,165.65 and 340,561.90

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Solution

The fourth proportional to 492,777.10, 739,165.65 and 340,561.90 is: 510,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,777.10 : 739,165.65 = 340,561.90 : x
  2. Step 2: Convert to fraction form
    492,777.10/739,165.65 = 340,561.90/x
  3. Step 3: Cross multiply
    492,777.10x = 739,165.65 × 340,561.90
  4. Step 4: Simplify right side
    492,777.10x = 251,731,658,178.74
  5. Step 5: Solve for x
    x = 251,731,658,178.74/492,777.10
  6. Step 6: Final answer
    x = 510,842.85

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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.