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Finding the Fourth Proportional to 298,287.58, 411,645.50 and 162,330.30

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Solution

The fourth proportional to 298,287.58, 411,645.50 and 162,330.30 is: 224,020.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,287.58 : 411,645.50 = 162,330.30 : x
  2. Step 2: Convert to fraction form
    298,287.58/411,645.50 = 162,330.30/x
  3. Step 3: Cross multiply
    298,287.58x = 411,645.50 × 162,330.30
  4. Step 4: Simplify right side
    298,287.58x = 66,822,537,508.65
  5. Step 5: Solve for x
    x = 66,822,537,508.65/298,287.58
  6. Step 6: Final answer
    x = 224,020.52

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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.