Home / 821,779.71-1,134,034.22-459,206.54

Finding the Fourth Proportional to 821,779.71, 1,134,034.22 and 459,206.54

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Solution

The fourth proportional to 821,779.71, 1,134,034.22 and 459,206.54 is: 633,692.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,779.71 : 1,134,034.22 = 459,206.54 : x
  2. Step 2: Convert to fraction form
    821,779.71/1,134,034.22 = 459,206.54/x
  3. Step 3: Cross multiply
    821,779.71x = 1,134,034.22 × 459,206.54
  4. Step 4: Simplify right side
    821,779.71x = 520,755,930,138.27
  5. Step 5: Solve for x
    x = 520,755,930,138.27/821,779.71
  6. Step 6: Final answer
    x = 633,692.86

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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.