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Finding the Fourth Proportional to 313,137.42, 469,790.82 and 223,293.60

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Solution

The fourth proportional to 313,137.42, 469,790.82 and 223,293.60 is: 335,000.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,137.42 : 469,790.82 = 223,293.60 : x
  2. Step 2: Convert to fraction form
    313,137.42/469,790.82 = 223,293.60/x
  3. Step 3: Cross multiply
    313,137.42x = 469,790.82 × 223,293.60
  4. Step 4: Simplify right side
    313,137.42x = 104,901,283,444.75
  5. Step 5: Solve for x
    x = 104,901,283,444.75/313,137.42
  6. Step 6: Final answer
    x = 335,000.79

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1.5x scale

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.