Home / 276,749.10-415,123.65-192,330.90

Finding the Fourth Proportional to 276,749.10, 415,123.65 and 192,330.90

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Solution

The fourth proportional to 276,749.10, 415,123.65 and 192,330.90 is: 288,496.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,749.10 : 415,123.65 = 192,330.90 : x
  2. Step 2: Convert to fraction form
    276,749.10/415,123.65 = 192,330.90/x
  3. Step 3: Cross multiply
    276,749.10x = 415,123.65 × 192,330.90
  4. Step 4: Simplify right side
    276,749.10x = 79,841,105,215.79
  5. Step 5: Solve for x
    x = 79,841,105,215.79/276,749.10
  6. Step 6: Final answer
    x = 288,496.35

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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.