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Finding the Fourth Proportional to 373,286.40, 559,929.60 and 221,727.30

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Solution

The fourth proportional to 373,286.40, 559,929.60 and 221,727.30 is: 332,590.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,286.40 : 559,929.60 = 221,727.30 : x
  2. Step 2: Convert to fraction form
    373,286.40/559,929.60 = 221,727.30/x
  3. Step 3: Cross multiply
    373,286.40x = 559,929.60 × 221,727.30
  4. Step 4: Simplify right side
    373,286.40x = 124,151,678,398.08
  5. Step 5: Solve for x
    x = 124,151,678,398.08/373,286.40
  6. Step 6: Final answer
    x = 332,590.95

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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.