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Finding the Fourth Proportional to 598,421.40, 897,672.60 and 243,441.60

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Solution

The fourth proportional to 598,421.40, 897,672.60 and 243,441.60 is: 365,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,421.40 : 897,672.60 = 243,441.60 : x
  2. Step 2: Convert to fraction form
    598,421.40/897,672.60 = 243,441.60/x
  3. Step 3: Cross multiply
    598,421.40x = 897,672.60 × 243,441.60
  4. Step 4: Simplify right side
    598,421.40x = 218,530,854,020.16
  5. Step 5: Solve for x
    x = 218,530,854,020.16/598,421.40
  6. Step 6: Final answer
    x = 365,178.88

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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.