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Finding the Fourth Proportional to 416,279.80, 624,235.02 and 191,585.80

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Solution

The fourth proportional to 416,279.80, 624,235.02 and 191,585.80 is: 287,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,279.80 : 624,235.02 = 191,585.80 : x
  2. Step 2: Convert to fraction form
    416,279.80/624,235.02 = 191,585.80/x
  3. Step 3: Cross multiply
    416,279.80x = 624,235.02 × 191,585.80
  4. Step 4: Simplify right side
    416,279.80x = 119,594,565,694.72
  5. Step 5: Solve for x
    x = 119,594,565,694.72/416,279.80
  6. Step 6: Final answer
    x = 287,293.70

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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.