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Finding the Fourth Proportional to 291,705.30, 437,039.55 and 250,233.30

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Solution

The fourth proportional to 291,705.30, 437,039.55 and 250,233.30 is: 374,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,705.30 : 437,039.55 = 250,233.30 : x
  2. Step 2: Convert to fraction form
    291,705.30/437,039.55 = 250,233.30/x
  3. Step 3: Cross multiply
    291,705.30x = 437,039.55 × 250,233.30
  4. Step 4: Simplify right side
    291,705.30x = 109,361,848,827.02
  5. Step 5: Solve for x
    x = 109,361,848,827.02/291,705.30
  6. Step 6: Final answer
    x = 374,905.25

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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.