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Finding the Fourth Proportional to 503,738.06, 695,175.48 and 274,304.21

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Solution

The fourth proportional to 503,738.06, 695,175.48 and 274,304.21 is: 378,549.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,738.06 : 695,175.48 = 274,304.21 : x
  2. Step 2: Convert to fraction form
    503,738.06/695,175.48 = 274,304.21/x
  3. Step 3: Cross multiply
    503,738.06x = 695,175.48 × 274,304.21
  4. Step 4: Simplify right side
    503,738.06x = 190,689,557,376.89
  5. Step 5: Solve for x
    x = 190,689,557,376.89/503,738.06
  6. Step 6: Final answer
    x = 378,549.04

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1.5x scale

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.