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Finding the Fourth Proportional to 550,667.14, 759,966.46 and 305,674.96

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Solution

The fourth proportional to 550,667.14, 759,966.46 and 305,674.96 is: 421,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,667.14 : 759,966.46 = 305,674.96 : x
  2. Step 2: Convert to fraction form
    550,667.14/759,966.46 = 305,674.96/x
  3. Step 3: Cross multiply
    550,667.14x = 759,966.46 × 305,674.96
  4. Step 4: Simplify right side
    550,667.14x = 232,302,717,261.84
  5. Step 5: Solve for x
    x = 232,302,717,261.84/550,667.14
  6. Step 6: Final answer
    x = 421,856.87

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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.