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Finding the Fourth Proportional to 377,977.76, 567,316.56 and 191,120.48

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Solution

The fourth proportional to 377,977.76, 567,316.56 and 191,120.48 is: 286,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,977.76 : 567,316.56 = 191,120.48 : x
  2. Step 2: Convert to fraction form
    377,977.76/567,316.56 = 191,120.48/x
  3. Step 3: Cross multiply
    377,977.76x = 567,316.56 × 191,120.48
  4. Step 4: Simplify right side
    377,977.76x = 108,425,813,259.15
  5. Step 5: Solve for x
    x = 108,425,813,259.15/377,977.76
  6. Step 6: Final answer
    x = 286,857.65

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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.