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Finding the Fourth Proportional to 608,172.12, 839,138.32 and 363,109.24

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Solution

The fourth proportional to 608,172.12, 839,138.32 and 363,109.24 is: 501,007.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,172.12 : 839,138.32 = 363,109.24 : x
  2. Step 2: Convert to fraction form
    608,172.12/839,138.32 = 363,109.24/x
  3. Step 3: Cross multiply
    608,172.12x = 839,138.32 × 363,109.24
  4. Step 4: Simplify right side
    608,172.12x = 304,698,877,630.08
  5. Step 5: Solve for x
    x = 304,698,877,630.08/608,172.12
  6. Step 6: Final answer
    x = 501,007.64

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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.