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Finding the Fourth Proportional to 399,184.04, 550,860.18 and 237,956

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Solution

The fourth proportional to 399,184.04, 550,860.18 and 237,956 is: 328,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,184.04 : 550,860.18 = 237,956 : x
  2. Step 2: Convert to fraction form
    399,184.04/550,860.18 = 237,956/x
  3. Step 3: Cross multiply
    399,184.04x = 550,860.18 × 237,956
  4. Step 4: Simplify right side
    399,184.04x = 131,080,484,992.08
  5. Step 5: Solve for x
    x = 131,080,484,992.08/399,184.04
  6. Step 6: Final answer
    x = 328,371.06

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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.