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Finding the Fourth Proportional to 503,686.50, 695,104.42 and 274,252.68

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Solution

The fourth proportional to 503,686.50, 695,104.42 and 274,252.68 is: 378,477.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,686.50 : 695,104.42 = 274,252.68 : x
  2. Step 2: Convert to fraction form
    503,686.50/695,104.42 = 274,252.68/x
  3. Step 3: Cross multiply
    503,686.50x = 695,104.42 × 274,252.68
  4. Step 4: Simplify right side
    503,686.50x = 190,634,250,064.85
  5. Step 5: Solve for x
    x = 190,634,250,064.85/503,686.50
  6. Step 6: Final answer
    x = 378,477.98

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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.