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Finding the Fourth Proportional to 476,958.15, 658,058.72 and 285,901.83

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Solution

The fourth proportional to 476,958.15, 658,058.72 and 285,901.83 is: 394,458.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,958.15 : 658,058.72 = 285,901.83 : x
  2. Step 2: Convert to fraction form
    476,958.15/658,058.72 = 285,901.83/x
  3. Step 3: Cross multiply
    476,958.15x = 658,058.72 × 285,901.83
  4. Step 4: Simplify right side
    476,958.15x = 188,140,190,865.95
  5. Step 5: Solve for x
    x = 188,140,190,865.95/476,958.15
  6. Step 6: Final answer
    x = 394,458.49

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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.