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Finding the Fourth Proportional to 431,564.08, 595,628.60 and 259,655.80

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Solution

The fourth proportional to 431,564.08, 595,628.60 and 259,655.80 is: 358,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,564.08 : 595,628.60 = 259,655.80 : x
  2. Step 2: Convert to fraction form
    431,564.08/595,628.60 = 259,655.80/x
  3. Step 3: Cross multiply
    431,564.08x = 595,628.60 × 259,655.80
  4. Step 4: Simplify right side
    431,564.08x = 154,658,420,635.88
  5. Step 5: Solve for x
    x = 154,658,420,635.88/431,564.08
  6. Step 6: Final answer
    x = 358,367.22

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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.