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Finding the Fourth Proportional to 368,760.60, 508,899.26 and 207,621.56

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Solution

The fourth proportional to 368,760.60, 508,899.26 and 207,621.56 is: 286,523.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,760.60 : 508,899.26 = 207,621.56 : x
  2. Step 2: Convert to fraction form
    368,760.60/508,899.26 = 207,621.56/x
  3. Step 3: Cross multiply
    368,760.60x = 508,899.26 × 207,621.56
  4. Step 4: Simplify right side
    368,760.60x = 105,658,458,244.05
  5. Step 5: Solve for x
    x = 105,658,458,244.05/368,760.60
  6. Step 6: Final answer
    x = 286,523.18

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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.