Home / 451,127.68-622,257.44-290,187.20

Finding the Fourth Proportional to 451,127.68, 622,257.44 and 290,187.20

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Solution

The fourth proportional to 451,127.68, 622,257.44 and 290,187.20 is: 400,266.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,127.68 : 622,257.44 = 290,187.20 : x
  2. Step 2: Convert to fraction form
    451,127.68/622,257.44 = 290,187.20/x
  3. Step 3: Cross multiply
    451,127.68x = 622,257.44 × 290,187.20
  4. Step 4: Simplify right side
    451,127.68x = 180,571,144,192.77
  5. Step 5: Solve for x
    x = 180,571,144,192.77/451,127.68
  6. Step 6: Final answer
    x = 400,266.16

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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.