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Finding the Fourth Proportional to 505,793.57, 697,986.97 and 276,345.93

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Solution

The fourth proportional to 505,793.57, 697,986.97 and 276,345.93 is: 381,352.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,793.57 : 697,986.97 = 276,345.93 : x
  2. Step 2: Convert to fraction form
    505,793.57/697,986.97 = 276,345.93/x
  3. Step 3: Cross multiply
    505,793.57x = 697,986.97 × 276,345.93
  4. Step 4: Simplify right side
    505,793.57x = 192,885,858,352.53
  5. Step 5: Solve for x
    x = 192,885,858,352.53/505,793.57
  6. Step 6: Final answer
    x = 381,352.93

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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.