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Finding the Fourth Proportional to 906,765.74, 1,360,099.40 and 275,630.34

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Solution

The fourth proportional to 906,765.74, 1,360,099.40 and 275,630.34 is: 413,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,765.74 : 1,360,099.40 = 275,630.34 : x
  2. Step 2: Convert to fraction form
    906,765.74/1,360,099.40 = 275,630.34/x
  3. Step 3: Cross multiply
    906,765.74x = 1,360,099.40 × 275,630.34
  4. Step 4: Simplify right side
    906,765.74x = 374,884,665,328.44
  5. Step 5: Solve for x
    x = 374,884,665,328.44/906,765.74
  6. Step 6: Final answer
    x = 413,430.56

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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.