Home / 626,020.38-863,919.90-384,181.92

Finding the Fourth Proportional to 626,020.38, 863,919.90 and 384,181.92

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Solution

The fourth proportional to 626,020.38, 863,919.90 and 384,181.92 is: 530,178.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,020.38 : 863,919.90 = 384,181.92 : x
  2. Step 2: Convert to fraction form
    626,020.38/863,919.90 = 384,181.92/x
  3. Step 3: Cross multiply
    626,020.38x = 863,919.90 × 384,181.92
  4. Step 4: Simplify right side
    626,020.38x = 331,902,405,908.21
  5. Step 5: Solve for x
    x = 331,902,405,908.21/626,020.38
  6. Step 6: Final answer
    x = 530,178.28

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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.