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Finding the Fourth Proportional to 503,543.78, 694,899.26 and 274,107.66

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Solution

The fourth proportional to 503,543.78, 694,899.26 and 274,107.66 is: 378,273.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,543.78 : 694,899.26 = 274,107.66 : x
  2. Step 2: Convert to fraction form
    503,543.78/694,899.26 = 274,107.66/x
  3. Step 3: Cross multiply
    503,543.78x = 694,899.26 × 274,107.66
  4. Step 4: Simplify right side
    503,543.78x = 190,477,210,094.33
  5. Step 5: Solve for x
    x = 190,477,210,094.33/503,543.78
  6. Step 6: Final answer
    x = 378,273.38

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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.