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Finding the Fourth Proportional to 379,482.87, 523,697.22 and 207,410.43

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Solution

The fourth proportional to 379,482.87, 523,697.22 and 207,410.43 is: 286,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,482.87 : 523,697.22 = 207,410.43 : x
  2. Step 2: Convert to fraction form
    379,482.87/523,697.22 = 207,410.43/x
  3. Step 3: Cross multiply
    379,482.87x = 523,697.22 × 207,410.43
  4. Step 4: Simplify right side
    379,482.87x = 108,620,265,590.01
  5. Step 5: Solve for x
    x = 108,620,265,590.01/379,482.87
  6. Step 6: Final answer
    x = 286,232.33

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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.