Home / 457,383.12-631,190.52-256,179.12

Finding the Fourth Proportional to 457,383.12, 631,190.52 and 256,179.12

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Solution

The fourth proportional to 457,383.12, 631,190.52 and 256,179.12 is: 353,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,383.12 : 631,190.52 = 256,179.12 : x
  2. Step 2: Convert to fraction form
    457,383.12/631,190.52 = 256,179.12/x
  3. Step 3: Cross multiply
    457,383.12x = 631,190.52 × 256,179.12
  4. Step 4: Simplify right side
    457,383.12x = 161,697,831,965.94
  5. Step 5: Solve for x
    x = 161,697,831,965.94/457,383.12
  6. Step 6: Final answer
    x = 353,528.20

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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.