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Finding the Fourth Proportional to 262,907.40, 394,498.80 and 120,795.60

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Solution

The fourth proportional to 262,907.40, 394,498.80 and 120,795.60 is: 181,256.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,907.40 : 394,498.80 = 120,795.60 : x
  2. Step 2: Convert to fraction form
    262,907.40/394,498.80 = 120,795.60/x
  3. Step 3: Cross multiply
    262,907.40x = 394,498.80 × 120,795.60
  4. Step 4: Simplify right side
    262,907.40x = 47,653,719,245.28
  5. Step 5: Solve for x
    x = 47,653,719,245.28/262,907.40
  6. Step 6: Final answer
    x = 181,256.67

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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.