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Finding the Fourth Proportional to 451,506.24, 623,500.43 and 290,640.87

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Solution

The fourth proportional to 451,506.24, 623,500.43 and 290,640.87 is: 401,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,506.24 : 623,500.43 = 290,640.87 : x
  2. Step 2: Convert to fraction form
    451,506.24/623,500.43 = 290,640.87/x
  3. Step 3: Cross multiply
    451,506.24x = 623,500.43 × 290,640.87
  4. Step 4: Simplify right side
    451,506.24x = 181,214,705,967.37
  5. Step 5: Solve for x
    x = 181,214,705,967.37/451,506.24
  6. Step 6: Final answer
    x = 401,355.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.