Home / 287,632.46-396,933.14-172,912.34

Finding the Fourth Proportional to 287,632.46, 396,933.14 and 172,912.34

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Solution

The fourth proportional to 287,632.46, 396,933.14 and 172,912.34 is: 238,619.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,632.46 : 396,933.14 = 172,912.34 : x
  2. Step 2: Convert to fraction form
    287,632.46/396,933.14 = 172,912.34/x
  3. Step 3: Cross multiply
    287,632.46x = 396,933.14 × 172,912.34
  4. Step 4: Simplify right side
    287,632.46x = 68,634,638,060.95
  5. Step 5: Solve for x
    x = 68,634,638,060.95/287,632.46
  6. Step 6: Final answer
    x = 238,619.24

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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.