Home / 257,394.24-386,091.36-70,407.36

Finding the Fourth Proportional to 257,394.24, 386,091.36 and 70,407.36

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Solution

The fourth proportional to 257,394.24, 386,091.36 and 70,407.36 is: 105,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,394.24 : 386,091.36 = 70,407.36 : x
  2. Step 2: Convert to fraction form
    257,394.24/386,091.36 = 70,407.36/x
  3. Step 3: Cross multiply
    257,394.24x = 386,091.36 × 70,407.36
  4. Step 4: Simplify right side
    257,394.24x = 27,183,673,376.41
  5. Step 5: Solve for x
    x = 27,183,673,376.41/257,394.24
  6. Step 6: Final answer
    x = 105,611.04

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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.