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Finding the Fourth Proportional to 377,116.56, 520,422.78 and 207,361.60

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Solution

The fourth proportional to 377,116.56, 520,422.78 and 207,361.60 is: 286,160.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,116.56 : 520,422.78 = 207,361.60 : x
  2. Step 2: Convert to fraction form
    377,116.56/520,422.78 = 207,361.60/x
  3. Step 3: Cross multiply
    377,116.56x = 520,422.78 × 207,361.60
  4. Step 4: Simplify right side
    377,116.56x = 107,915,700,337.25
  5. Step 5: Solve for x
    x = 107,915,700,337.25/377,116.56
  6. Step 6: Final answer
    x = 286,160.07

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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.