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Finding the Fourth Proportional to 341,269.90, 512,014.20 and 229,076.80

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Solution

The fourth proportional to 341,269.90, 512,014.20 and 229,076.80 is: 343,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,269.90 : 512,014.20 = 229,076.80 : x
  2. Step 2: Convert to fraction form
    341,269.90/512,014.20 = 229,076.80/x
  3. Step 3: Cross multiply
    341,269.90x = 512,014.20 × 229,076.80
  4. Step 4: Simplify right side
    341,269.90x = 117,290,574,490.56
  5. Step 5: Solve for x
    x = 117,290,574,490.56/341,269.90
  6. Step 6: Final answer
    x = 343,688.60

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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.