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Finding the Fourth Proportional to 343,694.45, 474,276.84 and 207,647.98

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Solution

The fourth proportional to 343,694.45, 474,276.84 and 207,647.98 is: 286,541.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,694.45 : 474,276.84 = 207,647.98 : x
  2. Step 2: Convert to fraction form
    343,694.45/474,276.84 = 207,647.98/x
  3. Step 3: Cross multiply
    343,694.45x = 474,276.84 × 207,647.98
  4. Step 4: Simplify right side
    343,694.45x = 98,482,627,786.78
  5. Step 5: Solve for x
    x = 98,482,627,786.78/343,694.45
  6. Step 6: Final answer
    x = 286,541.22

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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.