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Finding the Fourth Proportional to 592,661.54, 817,872.90 and 320,729.42

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Solution

The fourth proportional to 592,661.54, 817,872.90 and 320,729.42 is: 442,606.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,661.54 : 817,872.90 = 320,729.42 : x
  2. Step 2: Convert to fraction form
    592,661.54/817,872.90 = 320,729.42/x
  3. Step 3: Cross multiply
    592,661.54x = 817,872.90 × 320,729.42
  4. Step 4: Simplify right side
    592,661.54x = 262,315,900,850.72
  5. Step 5: Solve for x
    x = 262,315,900,850.72/592,661.54
  6. Step 6: Final answer
    x = 442,606.59

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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.