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Finding the Fourth Proportional to 405,551.15, 608,852.61 and 271,473.01

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Solution

The fourth proportional to 405,551.15, 608,852.61 and 271,473.01 is: 407,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,551.15 : 608,852.61 = 271,473.01 : x
  2. Step 2: Convert to fraction form
    405,551.15/608,852.61 = 271,473.01/x
  3. Step 3: Cross multiply
    405,551.15x = 608,852.61 × 271,473.01
  4. Step 4: Simplify right side
    405,551.15x = 165,287,049,160.93
  5. Step 5: Solve for x
    x = 165,287,049,160.93/405,551.15
  6. Step 6: Final answer
    x = 407,561.54

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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.