Home / 653,921.58-980,885.73-198,516.78

Finding the Fourth Proportional to 653,921.58, 980,885.73 and 198,516.78

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Solution

The fourth proportional to 653,921.58, 980,885.73 and 198,516.78 is: 297,776.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,921.58 : 980,885.73 = 198,516.78 : x
  2. Step 2: Convert to fraction form
    653,921.58/980,885.73 = 198,516.78/x
  3. Step 3: Cross multiply
    653,921.58x = 980,885.73 × 198,516.78
  4. Step 4: Simplify right side
    653,921.58x = 194,722,276,667.55
  5. Step 5: Solve for x
    x = 194,722,276,667.55/653,921.58
  6. Step 6: Final answer
    x = 297,776.19

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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.