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Finding the Fourth Proportional to 505,763.88, 758,758.80 and 190,223.52

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Solution

The fourth proportional to 505,763.88, 758,758.80 and 190,223.52 is: 285,377.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,763.88 : 758,758.80 = 190,223.52 : x
  2. Step 2: Convert to fraction form
    505,763.88/758,758.80 = 190,223.52/x
  3. Step 3: Cross multiply
    505,763.88x = 758,758.80 × 190,223.52
  4. Step 4: Simplify right side
    505,763.88x = 144,333,769,766.98
  5. Step 5: Solve for x
    x = 144,333,769,766.98/505,763.88
  6. Step 6: Final answer
    x = 285,377.77

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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.