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Finding the Fourth Proportional to 334,628.40, 501,942.60 and 305,079.60

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Solution

The fourth proportional to 334,628.40, 501,942.60 and 305,079.60 is: 457,619.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,628.40 : 501,942.60 = 305,079.60 : x
  2. Step 2: Convert to fraction form
    334,628.40/501,942.60 = 305,079.60/x
  3. Step 3: Cross multiply
    334,628.40x = 501,942.60 × 305,079.60
  4. Step 4: Simplify right side
    334,628.40x = 153,132,447,630.96
  5. Step 5: Solve for x
    x = 153,132,447,630.96/334,628.40
  6. Step 6: Final answer
    x = 457,619.40

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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.