Home / 451,238.10-622,629.63-257,557.38

Finding the Fourth Proportional to 451,238.10, 622,629.63 and 257,557.38

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Solution

The fourth proportional to 451,238.10, 622,629.63 and 257,557.38 is: 355,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,238.10 : 622,629.63 = 257,557.38 : x
  2. Step 2: Convert to fraction form
    451,238.10/622,629.63 = 257,557.38/x
  3. Step 3: Cross multiply
    451,238.10x = 622,629.63 × 257,557.38
  4. Step 4: Simplify right side
    451,238.10x = 160,362,856,213.17
  5. Step 5: Solve for x
    x = 160,362,856,213.17/451,238.10
  6. Step 6: Final answer
    x = 355,384.12

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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.