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Finding the Fourth Proportional to 503,939.70, 695,436.84 and 277,585.20

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Solution

The fourth proportional to 503,939.70, 695,436.84 and 277,585.20 is: 383,067.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,939.70 : 695,436.84 = 277,585.20 : x
  2. Step 2: Convert to fraction form
    503,939.70/695,436.84 = 277,585.20/x
  3. Step 3: Cross multiply
    503,939.70x = 695,436.84 × 277,585.20
  4. Step 4: Simplify right side
    503,939.70x = 193,042,974,318.77
  5. Step 5: Solve for x
    x = 193,042,974,318.77/503,939.70
  6. Step 6: Final answer
    x = 383,067.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.