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Finding the Fourth Proportional to 505,797.06, 759,121.24 and 253,001.72

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Solution

The fourth proportional to 505,797.06, 759,121.24 and 253,001.72 is: 379,715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,797.06 : 759,121.24 = 253,001.72 : x
  2. Step 2: Convert to fraction form
    505,797.06/759,121.24 = 253,001.72/x
  3. Step 3: Cross multiply
    505,797.06x = 759,121.24 × 253,001.72
  4. Step 4: Simplify right side
    505,797.06x = 192,058,979,408.53
  5. Step 5: Solve for x
    x = 192,058,979,408.53/505,797.06
  6. Step 6: Final answer
    x = 379,715.49

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.