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Finding the Fourth Proportional to 248,311.60, 372,467.40 and 223,428.40

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Solution

The fourth proportional to 248,311.60, 372,467.40 and 223,428.40 is: 335,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,311.60 : 372,467.40 = 223,428.40 : x
  2. Step 2: Convert to fraction form
    248,311.60/372,467.40 = 223,428.40/x
  3. Step 3: Cross multiply
    248,311.60x = 372,467.40 × 223,428.40
  4. Step 4: Simplify right side
    248,311.60x = 83,219,795,234.16
  5. Step 5: Solve for x
    x = 83,219,795,234.16/248,311.60
  6. Step 6: Final answer
    x = 335,142.60

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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.