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Finding the Fourth Proportional to 446,991.38, 616,848.11 and 245,787.38

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Solution

The fourth proportional to 446,991.38, 616,848.11 and 245,787.38 is: 339,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,991.38 : 616,848.11 = 245,787.38 : x
  2. Step 2: Convert to fraction form
    446,991.38/616,848.11 = 245,787.38/x
  3. Step 3: Cross multiply
    446,991.38x = 616,848.11 × 245,787.38
  4. Step 4: Simplify right side
    446,991.38x = 151,613,476,501.67
  5. Step 5: Solve for x
    x = 151,613,476,501.67/446,991.38
  6. Step 6: Final answer
    x = 339,186.58

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1.5x scale

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.