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Finding the Fourth Proportional to 446,653, 616,381.14 and 245,449

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Solution

The fourth proportional to 446,653, 616,381.14 and 245,449 is: 338,719.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,653 : 616,381.14 = 245,449 : x
  2. Step 2: Convert to fraction form
    446,653/616,381.14 = 245,449/x
  3. Step 3: Cross multiply
    446,653x = 616,381.14 × 245,449
  4. Step 4: Simplify right side
    446,653x = 151,290,134,431.86
  5. Step 5: Solve for x
    x = 151,290,134,431.86/446,653
  6. Step 6: Final answer
    x = 338,719.62

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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.