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Finding the Fourth Proportional to 349,260.40, 523,890.60 and 228,991.60

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Solution

The fourth proportional to 349,260.40, 523,890.60 and 228,991.60 is: 343,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,260.40 : 523,890.60 = 228,991.60 : x
  2. Step 2: Convert to fraction form
    349,260.40/523,890.60 = 228,991.60/x
  3. Step 3: Cross multiply
    349,260.40x = 523,890.60 × 228,991.60
  4. Step 4: Simplify right side
    349,260.40x = 119,966,546,718.96
  5. Step 5: Solve for x
    x = 119,966,546,718.96/349,260.40
  6. Step 6: Final answer
    x = 343,487.40

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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.