Home / 386,175.21-579,261.66-97,986.30

Finding the Fourth Proportional to 386,175.21, 579,261.66 and 97,986.30

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Solution

The fourth proportional to 386,175.21, 579,261.66 and 97,986.30 is: 146,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,175.21 : 579,261.66 = 97,986.30 : x
  2. Step 2: Convert to fraction form
    386,175.21/579,261.66 = 97,986.30/x
  3. Step 3: Cross multiply
    386,175.21x = 579,261.66 × 97,986.30
  4. Step 4: Simplify right side
    386,175.21x = 56,759,703,409.02
  5. Step 5: Solve for x
    x = 56,759,703,409.02/386,175.21
  6. Step 6: Final answer
    x = 146,979.15

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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.