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Finding the Fourth Proportional to 446,722, 616,476.36 and 245,518

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Solution

The fourth proportional to 446,722, 616,476.36 and 245,518 is: 338,814.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,722 : 616,476.36 = 245,518 : x
  2. Step 2: Convert to fraction form
    446,722/616,476.36 = 245,518/x
  3. Step 3: Cross multiply
    446,722x = 616,476.36 × 245,518
  4. Step 4: Simplify right side
    446,722x = 151,356,042,954.48
  5. Step 5: Solve for x
    x = 151,356,042,954.48/446,722
  6. Step 6: Final answer
    x = 338,814.84

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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.