Home / 401,194.64-553,628.04-231,418.64

Finding the Fourth Proportional to 401,194.64, 553,628.04 and 231,418.64

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Solution

The fourth proportional to 401,194.64, 553,628.04 and 231,418.64 is: 319,345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,194.64 : 553,628.04 = 231,418.64 : x
  2. Step 2: Convert to fraction form
    401,194.64/553,628.04 = 231,418.64/x
  3. Step 3: Cross multiply
    401,194.64x = 553,628.04 × 231,418.64
  4. Step 4: Simplify right side
    401,194.64x = 128,119,848,082.67
  5. Step 5: Solve for x
    x = 128,119,848,082.67/401,194.64
  6. Step 6: Final answer
    x = 319,345.86

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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.