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Finding the Fourth Proportional to 334,419.20, 501,628.80 and 192,701.60

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Solution

The fourth proportional to 334,419.20, 501,628.80 and 192,701.60 is: 289,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,419.20 : 501,628.80 = 192,701.60 : x
  2. Step 2: Convert to fraction form
    334,419.20/501,628.80 = 192,701.60/x
  3. Step 3: Cross multiply
    334,419.20x = 501,628.80 × 192,701.60
  4. Step 4: Simplify right side
    334,419.20x = 96,664,672,366.08
  5. Step 5: Solve for x
    x = 96,664,672,366.08/334,419.20
  6. Step 6: Final answer
    x = 289,052.40

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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.