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Finding the Fourth Proportional to 376,357.20, 519,400.20 and 248,811.60

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Solution

The fourth proportional to 376,357.20, 519,400.20 and 248,811.60 is: 343,378.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,357.20 : 519,400.20 = 248,811.60 : x
  2. Step 2: Convert to fraction form
    376,357.20/519,400.20 = 248,811.60/x
  3. Step 3: Cross multiply
    376,357.20x = 519,400.20 × 248,811.60
  4. Step 4: Simplify right side
    376,357.20x = 129,232,794,802.32
  5. Step 5: Solve for x
    x = 129,232,794,802.32/376,357.20
  6. Step 6: Final answer
    x = 343,378.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.