Home / 399,103.44-550,833-237,968.40

Finding the Fourth Proportional to 399,103.44, 550,833 and 237,968.40

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Solution

The fourth proportional to 399,103.44, 550,833 and 237,968.40 is: 328,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,103.44 : 550,833 = 237,968.40 : x
  2. Step 2: Convert to fraction form
    399,103.44/550,833 = 237,968.40/x
  3. Step 3: Cross multiply
    399,103.44x = 550,833 × 237,968.40
  4. Step 4: Simplify right side
    399,103.44x = 131,080,847,677.20
  5. Step 5: Solve for x
    x = 131,080,847,677.20/399,103.44
  6. Step 6: Final answer
    x = 328,438.28

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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.