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Finding the Fourth Proportional to 547,123.92, 755,110.26 and 394,667.34

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Solution

The fourth proportional to 547,123.92, 755,110.26 and 394,667.34 is: 544,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,123.92 : 755,110.26 = 394,667.34 : x
  2. Step 2: Convert to fraction form
    547,123.92/755,110.26 = 394,667.34/x
  3. Step 3: Cross multiply
    547,123.92x = 755,110.26 × 394,667.34
  4. Step 4: Simplify right side
    547,123.92x = 298,017,357,720.91
  5. Step 5: Solve for x
    x = 298,017,357,720.91/547,123.92
  6. Step 6: Final answer
    x = 544,698.10

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Double scale
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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.