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Finding the Fourth Proportional to 447,815.72, 617,957.52 and 246,611.72

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Solution

The fourth proportional to 447,815.72, 617,957.52 and 246,611.72 is: 340,308.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,815.72 : 617,957.52 = 246,611.72 : x
  2. Step 2: Convert to fraction form
    447,815.72/617,957.52 = 246,611.72/x
  3. Step 3: Cross multiply
    447,815.72x = 617,957.52 × 246,611.72
  4. Step 4: Simplify right side
    447,815.72x = 152,395,566,894.13
  5. Step 5: Solve for x
    x = 152,395,566,894.13/447,815.72
  6. Step 6: Final answer
    x = 340,308.66

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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.