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Finding the Fourth Proportional to 351,813.82, 485,501.15 and 190,667.15

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Solution

The fourth proportional to 351,813.82, 485,501.15 and 190,667.15 is: 263,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,813.82 : 485,501.15 = 190,667.15 : x
  2. Step 2: Convert to fraction form
    351,813.82/485,501.15 = 190,667.15/x
  3. Step 3: Cross multiply
    351,813.82x = 485,501.15 × 190,667.15
  4. Step 4: Simplify right side
    351,813.82x = 92,569,119,638.89
  5. Step 5: Solve for x
    x = 92,569,119,638.89/351,813.82
  6. Step 6: Final answer
    x = 263,119.63

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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.