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Finding the Fourth Proportional to 496,998.75, 745,498.13 and 123,021.75

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Solution

The fourth proportional to 496,998.75, 745,498.13 and 123,021.75 is: 184,532.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,998.75 : 745,498.13 = 123,021.75 : x
  2. Step 2: Convert to fraction form
    496,998.75/745,498.13 = 123,021.75/x
  3. Step 3: Cross multiply
    496,998.75x = 745,498.13 × 123,021.75
  4. Step 4: Simplify right side
    496,998.75x = 91,712,483,959.22
  5. Step 5: Solve for x
    x = 91,712,483,959.22/496,998.75
  6. Step 6: Final answer
    x = 184,532.63

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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.