Home / 252,351.40-378,527.10-127,676.20

Finding the Fourth Proportional to 252,351.40, 378,527.10 and 127,676.20

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Solution

The fourth proportional to 252,351.40, 378,527.10 and 127,676.20 is: 191,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,351.40 : 378,527.10 = 127,676.20 : x
  2. Step 2: Convert to fraction form
    252,351.40/378,527.10 = 127,676.20/x
  3. Step 3: Cross multiply
    252,351.40x = 378,527.10 × 127,676.20
  4. Step 4: Simplify right side
    252,351.40x = 48,328,901,725.02
  5. Step 5: Solve for x
    x = 48,328,901,725.02/252,351.40
  6. Step 6: Final answer
    x = 191,514.30

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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.