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Finding the Fourth Proportional to 608,595.16, 839,578.36 and 393,804.60

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Solution

The fourth proportional to 608,595.16, 839,578.36 and 393,804.60 is: 543,267.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,595.16 : 839,578.36 = 393,804.60 : x
  2. Step 2: Convert to fraction form
    608,595.16/839,578.36 = 393,804.60/x
  3. Step 3: Cross multiply
    608,595.16x = 839,578.36 × 393,804.60
  4. Step 4: Simplify right side
    608,595.16x = 330,629,820,228.46
  5. Step 5: Solve for x
    x = 330,629,820,228.46/608,595.16
  6. Step 6: Final answer
    x = 543,267.25

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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.