Home / 626,021.38-863,921.28-384,182.92

Finding the Fourth Proportional to 626,021.38, 863,921.28 and 384,182.92

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Solution

The fourth proportional to 626,021.38, 863,921.28 and 384,182.92 is: 530,179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,021.38 : 863,921.28 = 384,182.92 : x
  2. Step 2: Convert to fraction form
    626,021.38/863,921.28 = 384,182.92/x
  3. Step 3: Cross multiply
    626,021.38x = 863,921.28 × 384,182.92
  4. Step 4: Simplify right side
    626,021.38x = 331,903,800,000.54
  5. Step 5: Solve for x
    x = 331,903,800,000.54/626,021.38
  6. Step 6: Final answer
    x = 530,179.66

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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.