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Finding the Fourth Proportional to 505,771.07, 698,012.33 and 276,363.23

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Solution

The fourth proportional to 505,771.07, 698,012.33 and 276,363.23 is: 381,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,771.07 : 698,012.33 = 276,363.23 : x
  2. Step 2: Convert to fraction form
    505,771.07/698,012.33 = 276,363.23/x
  3. Step 3: Cross multiply
    505,771.07x = 698,012.33 × 276,363.23
  4. Step 4: Simplify right side
    505,771.07x = 192,904,942,098.63
  5. Step 5: Solve for x
    x = 192,904,942,098.63/505,771.07
  6. Step 6: Final answer
    x = 381,407.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.