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Finding the Fourth Proportional to 405,550.28, 608,116.78 and 237,107.72

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Solution

The fourth proportional to 405,550.28, 608,116.78 and 237,107.72 is: 355,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,550.28 : 608,116.78 = 237,107.72 : x
  2. Step 2: Convert to fraction form
    405,550.28/608,116.78 = 237,107.72/x
  3. Step 3: Cross multiply
    405,550.28x = 608,116.78 × 237,107.72
  4. Step 4: Simplify right side
    405,550.28x = 144,189,183,199.54
  5. Step 5: Solve for x
    x = 144,189,183,199.54/405,550.28
  6. Step 6: Final answer
    x = 355,539.60

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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.