Home / 401,556.81-554,148.38-231,790.94

Finding the Fourth Proportional to 401,556.81, 554,148.38 and 231,790.94

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Solution

The fourth proportional to 401,556.81, 554,148.38 and 231,790.94 is: 319,871.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,556.81 : 554,148.38 = 231,790.94 : x
  2. Step 2: Convert to fraction form
    401,556.81/554,148.38 = 231,790.94/x
  3. Step 3: Cross multiply
    401,556.81x = 554,148.38 × 231,790.94
  4. Step 4: Simplify right side
    401,556.81x = 128,446,569,969.98
  5. Step 5: Solve for x
    x = 128,446,569,969.98/401,556.81
  6. Step 6: Final answer
    x = 319,871.48

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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.