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Finding the Fourth Proportional to 408,046.30, 612,069.45 and 362,556.70

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Solution

The fourth proportional to 408,046.30, 612,069.45 and 362,556.70 is: 543,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,046.30 : 612,069.45 = 362,556.70 : x
  2. Step 2: Convert to fraction form
    408,046.30/612,069.45 = 362,556.70/x
  3. Step 3: Cross multiply
    408,046.30x = 612,069.45 × 362,556.70
  4. Step 4: Simplify right side
    408,046.30x = 221,909,879,962.82
  5. Step 5: Solve for x
    x = 221,909,879,962.82/408,046.30
  6. Step 6: Final answer
    x = 543,835.05

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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.