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Finding the Fourth Proportional to 462,709.79, 638,552.63 and 258,768.39

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Solution

The fourth proportional to 462,709.79, 638,552.63 and 258,768.39 is: 357,107.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,709.79 : 638,552.63 = 258,768.39 : x
  2. Step 2: Convert to fraction form
    462,709.79/638,552.63 = 258,768.39/x
  3. Step 3: Cross multiply
    462,709.79x = 638,552.63 × 258,768.39
  4. Step 4: Simplify right side
    462,709.79x = 165,237,235,995.37
  5. Step 5: Solve for x
    x = 165,237,235,995.37/462,709.79
  6. Step 6: Final answer
    x = 357,107.72

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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.