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Finding the Fourth Proportional to 522,679.72, 783,397.50 and 364,049.32

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Solution

The fourth proportional to 522,679.72, 783,397.50 and 364,049.32 is: 545,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,679.72 : 783,397.50 = 364,049.32 : x
  2. Step 2: Convert to fraction form
    522,679.72/783,397.50 = 364,049.32/x
  3. Step 3: Cross multiply
    522,679.72x = 783,397.50 × 364,049.32
  4. Step 4: Simplify right side
    522,679.72x = 285,195,327,164.70
  5. Step 5: Solve for x
    x = 285,195,327,164.70/522,679.72
  6. Step 6: Final answer
    x = 545,640.70

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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.