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Finding the Fourth Proportional to 503,840.25, 755,774.96 and 129,863.25

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Solution

The fourth proportional to 503,840.25, 755,774.96 and 129,863.25 is: 194,798.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,840.25 : 755,774.96 = 129,863.25 : x
  2. Step 2: Convert to fraction form
    503,840.25/755,774.96 = 129,863.25/x
  3. Step 3: Cross multiply
    503,840.25x = 755,774.96 × 129,863.25
  4. Step 4: Simplify right side
    503,840.25x = 98,147,391,924.90
  5. Step 5: Solve for x
    x = 98,147,391,924.90/503,840.25
  6. Step 6: Final answer
    x = 194,798.63

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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.