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Finding the Fourth Proportional to 379,665.95, 523,939.94 and 207,595.02

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Solution

The fourth proportional to 379,665.95, 523,939.94 and 207,595.02 is: 286,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,665.95 : 523,939.94 = 207,595.02 : x
  2. Step 2: Convert to fraction form
    379,665.95/523,939.94 = 207,595.02/x
  3. Step 3: Cross multiply
    379,665.95x = 523,939.94 × 207,595.02
  4. Step 4: Simplify right side
    379,665.95x = 108,767,322,842.09
  5. Step 5: Solve for x
    x = 108,767,322,842.09/379,665.95
  6. Step 6: Final answer
    x = 286,481.64

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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.