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Finding the Fourth Proportional to 503,639.38, 695,026.53 and 274,198.24

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Solution

The fourth proportional to 503,639.38, 695,026.53 and 274,198.24 is: 378,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,639.38 : 695,026.53 = 274,198.24 : x
  2. Step 2: Convert to fraction form
    503,639.38/695,026.53 = 274,198.24/x
  3. Step 3: Cross multiply
    503,639.38x = 695,026.53 × 274,198.24
  4. Step 4: Simplify right side
    503,639.38x = 190,575,051,279.31
  5. Step 5: Solve for x
    x = 190,575,051,279.31/503,639.38
  6. Step 6: Final answer
    x = 378,395.85

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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.