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Finding the Fourth Proportional to 358,479.73, 537,127.89 and 208,298.44

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Solution

The fourth proportional to 358,479.73, 537,127.89 and 208,298.44 is: 312,103.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,479.73 : 537,127.89 = 208,298.44 : x
  2. Step 2: Convert to fraction form
    358,479.73/537,127.89 = 208,298.44/x
  3. Step 3: Cross multiply
    358,479.73x = 537,127.89 × 208,298.44
  4. Step 4: Simplify right side
    358,479.73x = 111,882,901,567.49
  5. Step 5: Solve for x
    x = 111,882,901,567.49/358,479.73
  6. Step 6: Final answer
    x = 312,103.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.