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Finding the Fourth Proportional to 393,029.64, 541,995.56 and 249,540.56

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Solution

The fourth proportional to 393,029.64, 541,995.56 and 249,540.56 is: 344,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,029.64 : 541,995.56 = 249,540.56 : x
  2. Step 2: Convert to fraction form
    393,029.64/541,995.56 = 249,540.56/x
  3. Step 3: Cross multiply
    393,029.64x = 541,995.56 × 249,540.56
  4. Step 4: Simplify right side
    393,029.64x = 135,249,875,559.91
  5. Step 5: Solve for x
    x = 135,249,875,559.91/393,029.64
  6. Step 6: Final answer
    x = 344,121.31

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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.