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Finding the Fourth Proportional to 664,444.96, 996,667.44 and 379,935.94

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Solution

The fourth proportional to 664,444.96, 996,667.44 and 379,935.94 is: 569,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,444.96 : 996,667.44 = 379,935.94 : x
  2. Step 2: Convert to fraction form
    664,444.96/996,667.44 = 379,935.94/x
  3. Step 3: Cross multiply
    664,444.96x = 996,667.44 × 379,935.94
  4. Step 4: Simplify right side
    664,444.96x = 378,669,781,841.83
  5. Step 5: Solve for x
    x = 378,669,781,841.83/664,444.96
  6. Step 6: Final answer
    x = 569,903.91

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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.