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Finding the Fourth Proportional to 906,235.72, 1,359,265.68 and 275,155

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Solution

The fourth proportional to 906,235.72, 1,359,265.68 and 275,155 is: 412,705.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,235.72 : 1,359,265.68 = 275,155 : x
  2. Step 2: Convert to fraction form
    906,235.72/1,359,265.68 = 275,155/x
  3. Step 3: Cross multiply
    906,235.72x = 1,359,265.68 × 275,155
  4. Step 4: Simplify right side
    906,235.72x = 374,008,748,180.40
  5. Step 5: Solve for x
    x = 374,008,748,180.40/906,235.72
  6. Step 6: Final answer
    x = 412,705.81

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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.