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Finding the Fourth Proportional to 500,764.38, 750,621.69 and 185,019.90

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Solution

The fourth proportional to 500,764.38, 750,621.69 and 185,019.90 is: 277,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,764.38 : 750,621.69 = 185,019.90 : x
  2. Step 2: Convert to fraction form
    500,764.38/750,621.69 = 185,019.90/x
  3. Step 3: Cross multiply
    500,764.38x = 750,621.69 × 185,019.90
  4. Step 4: Simplify right side
    500,764.38x = 138,879,950,021.63
  5. Step 5: Solve for x
    x = 138,879,950,021.63/500,764.38
  6. Step 6: Final answer
    x = 277,335.92

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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.