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Finding the Fourth Proportional to 405,503.70, 608,601.15 and 181,209.30

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Solution

The fourth proportional to 405,503.70, 608,601.15 and 181,209.30 is: 271,968.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,503.70 : 608,601.15 = 181,209.30 : x
  2. Step 2: Convert to fraction form
    405,503.70/608,601.15 = 181,209.30/x
  3. Step 3: Cross multiply
    405,503.70x = 608,601.15 × 181,209.30
  4. Step 4: Simplify right side
    405,503.70x = 110,284,188,370.70
  5. Step 5: Solve for x
    x = 110,284,188,370.70/405,503.70
  6. Step 6: Final answer
    x = 271,968.39

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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.