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Finding the Fourth Proportional to 447,159.72, 617,067.54 and 245,955.72

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Solution

The fourth proportional to 447,159.72, 617,067.54 and 245,955.72 is: 339,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,159.72 : 617,067.54 = 245,955.72 : x
  2. Step 2: Convert to fraction form
    447,159.72/617,067.54 = 245,955.72/x
  3. Step 3: Cross multiply
    447,159.72x = 617,067.54 × 245,955.72
  4. Step 4: Simplify right side
    447,159.72x = 151,771,291,089.33
  5. Step 5: Solve for x
    x = 151,771,291,089.33/447,159.72
  6. Step 6: Final answer
    x = 339,411.81

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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.