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Finding the Fourth Proportional to 522,247.92, 783,722.16 and 335,390.64

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Solution

The fourth proportional to 522,247.92, 783,722.16 and 335,390.64 is: 503,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,247.92 : 783,722.16 = 335,390.64 : x
  2. Step 2: Convert to fraction form
    522,247.92/783,722.16 = 335,390.64/x
  3. Step 3: Cross multiply
    522,247.92x = 783,722.16 × 335,390.64
  4. Step 4: Simplify right side
    522,247.92x = 262,853,076,824.58
  5. Step 5: Solve for x
    x = 262,853,076,824.58/522,247.92
  6. Step 6: Final answer
    x = 503,310.91

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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.