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Finding the Fourth Proportional to 503,935.78, 695,431.41 and 277,581.28

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Solution

The fourth proportional to 503,935.78, 695,431.41 and 277,581.28 is: 383,062.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,935.78 : 695,431.41 = 277,581.28 : x
  2. Step 2: Convert to fraction form
    503,935.78/695,431.41 = 277,581.28/x
  3. Step 3: Cross multiply
    503,935.78x = 695,431.41 × 277,581.28
  4. Step 4: Simplify right side
    503,935.78x = 193,038,740,940.01
  5. Step 5: Solve for x
    x = 193,038,740,940.01/503,935.78
  6. Step 6: Final answer
    x = 383,062.18

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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.