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Finding the Fourth Proportional to 503,758.37, 695,203.74 and 274,319.60

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Solution

The fourth proportional to 503,758.37, 695,203.74 and 274,319.60 is: 378,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,758.37 : 695,203.74 = 274,319.60 : x
  2. Step 2: Convert to fraction form
    503,758.37/695,203.74 = 274,319.60/x
  3. Step 3: Cross multiply
    503,758.37x = 695,203.74 × 274,319.60
  4. Step 4: Simplify right side
    503,758.37x = 190,708,008,399.29
  5. Step 5: Solve for x
    x = 190,708,008,399.29/503,758.37
  6. Step 6: Final answer
    x = 378,570.40

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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.