Home / 401,246.20-553,778.70-231,447.16

Finding the Fourth Proportional to 401,246.20, 553,778.70 and 231,447.16

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Solution

The fourth proportional to 401,246.20, 553,778.70 and 231,447.16 is: 319,431.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,246.20 : 553,778.70 = 231,447.16 : x
  2. Step 2: Convert to fraction form
    401,246.20/553,778.70 = 231,447.16/x
  3. Step 3: Cross multiply
    401,246.20x = 553,778.70 × 231,447.16
  4. Step 4: Simplify right side
    401,246.20x = 128,170,507,383.49
  5. Step 5: Solve for x
    x = 128,170,507,383.49/401,246.20
  6. Step 6: Final answer
    x = 319,431.08

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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.