Home / 256,407.06-384,610.86-66,867.24

Finding the Fourth Proportional to 256,407.06, 384,610.86 and 66,867.24

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Solution

The fourth proportional to 256,407.06, 384,610.86 and 66,867.24 is: 100,300.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,407.06 : 384,610.86 = 66,867.24 : x
  2. Step 2: Convert to fraction form
    256,407.06/384,610.86 = 66,867.24/x
  3. Step 3: Cross multiply
    256,407.06x = 384,610.86 × 66,867.24
  4. Step 4: Simplify right side
    256,407.06x = 25,717,866,682.23
  5. Step 5: Solve for x
    x = 25,717,866,682.23/256,407.06
  6. Step 6: Final answer
    x = 100,300.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.