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Finding the Fourth Proportional to 376,507.20, 519,607.20 and 248,961.60

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Solution

The fourth proportional to 376,507.20, 519,607.20 and 248,961.60 is: 343,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,507.20 : 519,607.20 = 248,961.60 : x
  2. Step 2: Convert to fraction form
    376,507.20/519,607.20 = 248,961.60/x
  3. Step 3: Cross multiply
    376,507.20x = 519,607.20 × 248,961.60
  4. Step 4: Simplify right side
    376,507.20x = 129,362,239,883.52
  5. Step 5: Solve for x
    x = 129,362,239,883.52/376,507.20
  6. Step 6: Final answer
    x = 343,585.04

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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.