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Finding the Fourth Proportional to 397,407.60, 596,111.40 and 187,455.60

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Solution

The fourth proportional to 397,407.60, 596,111.40 and 187,455.60 is: 281,183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,407.60 : 596,111.40 = 187,455.60 : x
  2. Step 2: Convert to fraction form
    397,407.60/596,111.40 = 187,455.60/x
  3. Step 3: Cross multiply
    397,407.60x = 596,111.40 × 187,455.60
  4. Step 4: Simplify right side
    397,407.60x = 111,744,420,153.84
  5. Step 5: Solve for x
    x = 111,744,420,153.84/397,407.60
  6. Step 6: Final answer
    x = 281,183.40

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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.