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Finding the Fourth Proportional to 503,808.75, 695,278.53 and 297,085.41

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Solution

The fourth proportional to 503,808.75, 695,278.53 and 297,085.41 is: 409,991.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,808.75 : 695,278.53 = 297,085.41 : x
  2. Step 2: Convert to fraction form
    503,808.75/695,278.53 = 297,085.41/x
  3. Step 3: Cross multiply
    503,808.75x = 695,278.53 × 297,085.41
  4. Step 4: Simplify right side
    503,808.75x = 206,557,107,149.25
  5. Step 5: Solve for x
    x = 206,557,107,149.25/503,808.75
  6. Step 6: Final answer
    x = 409,991.11

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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.