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Finding the Fourth Proportional to 405,201.80, 606,927.90 and 263,484.20

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Solution

The fourth proportional to 405,201.80, 606,927.90 and 263,484.20 is: 394,657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,201.80 : 606,927.90 = 263,484.20 : x
  2. Step 2: Convert to fraction form
    405,201.80/606,927.90 = 263,484.20/x
  3. Step 3: Cross multiply
    405,201.80x = 606,927.90 × 263,484.20
  4. Step 4: Simplify right side
    405,201.80x = 159,915,912,189.18
  5. Step 5: Solve for x
    x = 159,915,912,189.18/405,201.80
  6. Step 6: Final answer
    x = 394,657.46

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1.5x scale

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.