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Finding the Fourth Proportional to 476,098.80, 656,994.36 and 261,233.52

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Solution

The fourth proportional to 476,098.80, 656,994.36 and 261,233.52 is: 360,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,098.80 : 656,994.36 = 261,233.52 : x
  2. Step 2: Convert to fraction form
    476,098.80/656,994.36 = 261,233.52/x
  3. Step 3: Cross multiply
    476,098.80x = 656,994.36 × 261,233.52
  4. Step 4: Simplify right side
    476,098.80x = 171,628,949,282.95
  5. Step 5: Solve for x
    x = 171,628,949,282.95/476,098.80
  6. Step 6: Final answer
    x = 360,490.20

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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.