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Finding the Fourth Proportional to 682,507.80, 941,865.83 and 376,595.49

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Solution

The fourth proportional to 682,507.80, 941,865.83 and 376,595.49 is: 519,704.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,507.80 : 941,865.83 = 376,595.49 : x
  2. Step 2: Convert to fraction form
    682,507.80/941,865.83 = 376,595.49/x
  3. Step 3: Cross multiply
    682,507.80x = 941,865.83 × 376,595.49
  4. Step 4: Simplify right side
    682,507.80x = 354,702,421,880.13
  5. Step 5: Solve for x
    x = 354,702,421,880.13/682,507.80
  6. Step 6: Final answer
    x = 519,704.57

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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.