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Finding the Fourth Proportional to 503,994.64, 695,479.54 and 277,640.12

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Solution

The fourth proportional to 503,994.64, 695,479.54 and 277,640.12 is: 383,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,994.64 : 695,479.54 = 277,640.12 : x
  2. Step 2: Convert to fraction form
    503,994.64/695,479.54 = 277,640.12/x
  3. Step 3: Cross multiply
    503,994.64x = 695,479.54 × 277,640.12
  4. Step 4: Simplify right side
    503,994.64x = 193,093,022,943.15
  5. Step 5: Solve for x
    x = 193,093,022,943.15/503,994.64
  6. Step 6: Final answer
    x = 383,125.15

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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.