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Finding the Fourth Proportional to 608,307.93, 839,185.92 and 393,517.26

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Solution

The fourth proportional to 608,307.93, 839,185.92 and 393,517.26 is: 542,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,307.93 : 839,185.92 = 393,517.26 : x
  2. Step 2: Convert to fraction form
    608,307.93/839,185.92 = 393,517.26/x
  3. Step 3: Cross multiply
    608,307.93x = 839,185.92 × 393,517.26
  4. Step 4: Simplify right side
    608,307.93x = 330,234,143,868.98
  5. Step 5: Solve for x
    x = 330,234,143,868.98/608,307.93
  6. Step 6: Final answer
    x = 542,873.32

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Double scale
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1.5x scale

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.