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Finding the Fourth Proportional to 503,633.88, 695,018.94 and 274,192.74

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Solution

The fourth proportional to 503,633.88, 695,018.94 and 274,192.74 is: 378,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,633.88 : 695,018.94 = 274,192.74 : x
  2. Step 2: Convert to fraction form
    503,633.88/695,018.94 = 274,192.74/x
  3. Step 3: Cross multiply
    503,633.88x = 695,018.94 × 274,192.74
  4. Step 4: Simplify right side
    503,633.88x = 190,569,147,510.50
  5. Step 5: Solve for x
    x = 190,569,147,510.50/503,633.88
  6. Step 6: Final answer
    x = 378,388.26

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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.