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Finding the Fourth Proportional to 608,203.90, 839,287.47 and 336,255.94

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Solution

The fourth proportional to 608,203.90, 839,287.47 and 336,255.94 is: 464,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,203.90 : 839,287.47 = 336,255.94 : x
  2. Step 2: Convert to fraction form
    608,203.90/839,287.47 = 336,255.94/x
  3. Step 3: Cross multiply
    608,203.90x = 839,287.47 × 336,255.94
  4. Step 4: Simplify right side
    608,203.90x = 282,215,397,155.07
  5. Step 5: Solve for x
    x = 282,215,397,155.07/608,203.90
  6. Step 6: Final answer
    x = 464,014.45

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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.