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Finding the Fourth Proportional to 447,063.48, 616,935.30 and 245,859.48

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Solution

The fourth proportional to 447,063.48, 616,935.30 and 245,859.48 is: 339,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,063.48 : 616,935.30 = 245,859.48 : x
  2. Step 2: Convert to fraction form
    447,063.48/616,935.30 = 245,859.48/x
  3. Step 3: Cross multiply
    447,063.48x = 616,935.30 × 245,859.48
  4. Step 4: Simplify right side
    447,063.48x = 151,679,392,051.64
  5. Step 5: Solve for x
    x = 151,679,392,051.64/447,063.48
  6. Step 6: Final answer
    x = 339,279.32

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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.