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Finding the Fourth Proportional to 503,980.57, 755,571.12 and 251,123.28

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Solution

The fourth proportional to 503,980.57, 755,571.12 and 251,123.28 is: 376,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,980.57 : 755,571.12 = 251,123.28 : x
  2. Step 2: Convert to fraction form
    503,980.57/755,571.12 = 251,123.28/x
  3. Step 3: Cross multiply
    503,980.57x = 755,571.12 × 251,123.28
  4. Step 4: Simplify right side
    503,980.57x = 189,741,497,927.67
  5. Step 5: Solve for x
    x = 189,741,497,927.67/503,980.57
  6. Step 6: Final answer
    x = 376,485.74

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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.