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Finding the Fourth Proportional to 262,530.40, 393,795.60 and 251,012.20

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Solution

The fourth proportional to 262,530.40, 393,795.60 and 251,012.20 is: 376,518.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,530.40 : 393,795.60 = 251,012.20 : x
  2. Step 2: Convert to fraction form
    262,530.40/393,795.60 = 251,012.20/x
  3. Step 3: Cross multiply
    262,530.40x = 393,795.60 × 251,012.20
  4. Step 4: Simplify right side
    262,530.40x = 98,847,499,906.32
  5. Step 5: Solve for x
    x = 98,847,499,906.32/262,530.40
  6. Step 6: Final answer
    x = 376,518.30

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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.