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Finding the Fourth Proportional to 547,558.92, 755,623.35 and 305,844.93

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Solution

The fourth proportional to 547,558.92, 755,623.35 and 305,844.93 is: 422,061.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,558.92 : 755,623.35 = 305,844.93 : x
  2. Step 2: Convert to fraction form
    547,558.92/755,623.35 = 305,844.93/x
  3. Step 3: Cross multiply
    547,558.92x = 755,623.35 × 305,844.93
  4. Step 4: Simplify right side
    547,558.92x = 231,103,570,587.12
  5. Step 5: Solve for x
    x = 231,103,570,587.12/547,558.92
  6. Step 6: Final answer
    x = 422,061.56

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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.