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Finding the Fourth Proportional to 298,811.20, 412,347.42 and 162,842.24

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Solution

The fourth proportional to 298,811.20, 412,347.42 and 162,842.24 is: 224,715.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,811.20 : 412,347.42 = 162,842.24 : x
  2. Step 2: Convert to fraction form
    298,811.20/412,347.42 = 162,842.24/x
  3. Step 3: Cross multiply
    298,811.20x = 412,347.42 × 162,842.24
  4. Step 4: Simplify right side
    298,811.20x = 67,147,577,531.02
  5. Step 5: Solve for x
    x = 67,147,577,531.02/298,811.20
  6. Step 6: Final answer
    x = 224,715.73

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1.5x scale

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.