Home / 451,811.54-623,921.85-290,949.50

Finding the Fourth Proportional to 451,811.54, 623,921.85 and 290,949.50

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Solution

The fourth proportional to 451,811.54, 623,921.85 and 290,949.50 is: 401,782.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,811.54 : 623,921.85 = 290,949.50 : x
  2. Step 2: Convert to fraction form
    451,811.54/623,921.85 = 290,949.50/x
  3. Step 3: Cross multiply
    451,811.54x = 623,921.85 × 290,949.50
  4. Step 4: Simplify right side
    451,811.54x = 181,529,751,856.38
  5. Step 5: Solve for x
    x = 181,529,751,856.38/451,811.54
  6. Step 6: Final answer
    x = 401,782.01

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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.