Home / 915,471.21-1,263,100.03-547,800.37

Finding the Fourth Proportional to 915,471.21, 1,263,100.03 and 547,800.37

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Solution

The fourth proportional to 915,471.21, 1,263,100.03 and 547,800.37 is: 755,814.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,471.21 : 1,263,100.03 = 547,800.37 : x
  2. Step 2: Convert to fraction form
    915,471.21/1,263,100.03 = 547,800.37/x
  3. Step 3: Cross multiply
    915,471.21x = 1,263,100.03 × 547,800.37
  4. Step 4: Simplify right side
    915,471.21x = 691,926,659,253.76
  5. Step 5: Solve for x
    x = 691,926,659,253.76/915,471.21
  6. Step 6: Final answer
    x = 755,814.76

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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.