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Finding the Fourth Proportional to 610,604.20, 842,674.62 and 338,758.48

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Solution

The fourth proportional to 610,604.20, 842,674.62 and 338,758.48 is: 467,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,604.20 : 842,674.62 = 338,758.48 : x
  2. Step 2: Convert to fraction form
    610,604.20/842,674.62 = 338,758.48/x
  3. Step 3: Cross multiply
    610,604.20x = 842,674.62 × 338,758.48
  4. Step 4: Simplify right side
    610,604.20x = 285,463,173,405.78
  5. Step 5: Solve for x
    x = 285,463,173,405.78/610,604.20
  6. Step 6: Final answer
    x = 467,509.35

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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.