Home / 522,921.63-784,123.44-185,911.83

Finding the Fourth Proportional to 522,921.63, 784,123.44 and 185,911.83

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Solution

The fourth proportional to 522,921.63, 784,123.44 and 185,911.83 is: 278,775.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,921.63 : 784,123.44 = 185,911.83 : x
  2. Step 2: Convert to fraction form
    522,921.63/784,123.44 = 185,911.83/x
  3. Step 3: Cross multiply
    522,921.63x = 784,123.44 × 185,911.83
  4. Step 4: Simplify right side
    522,921.63x = 145,777,823,676.30
  5. Step 5: Solve for x
    x = 145,777,823,676.30/522,921.63
  6. Step 6: Final answer
    x = 278,775.66

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Similar ratio
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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.