Home / 821,785.67-1,134,042.46-459,212.52

Finding the Fourth Proportional to 821,785.67, 1,134,042.46 and 459,212.52

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Solution

The fourth proportional to 821,785.67, 1,134,042.46 and 459,212.52 is: 633,701.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,785.67 : 1,134,042.46 = 459,212.52 : x
  2. Step 2: Convert to fraction form
    821,785.67/1,134,042.46 = 459,212.52/x
  3. Step 3: Cross multiply
    821,785.67x = 1,134,042.46 × 459,212.52
  4. Step 4: Simplify right side
    821,785.67x = 520,766,498,948.23
  5. Step 5: Solve for x
    x = 520,766,498,948.23/821,785.67
  6. Step 6: Final answer
    x = 633,701.12

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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.