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Finding the Fourth Proportional to 410,375.40, 614,162.70 and 343,890.60

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Solution

The fourth proportional to 410,375.40, 614,162.70 and 343,890.60 is: 514,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,375.40 : 614,162.70 = 343,890.60 : x
  2. Step 2: Convert to fraction form
    410,375.40/614,162.70 = 343,890.60/x
  3. Step 3: Cross multiply
    410,375.40x = 614,162.70 × 343,890.60
  4. Step 4: Simplify right side
    410,375.40x = 211,204,779,400.62
  5. Step 5: Solve for x
    x = 211,204,779,400.62/410,375.40
  6. Step 6: Final answer
    x = 514,662.38

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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.