Home / 821,780.06-1,134,034.73-459,206.90

Finding the Fourth Proportional to 821,780.06, 1,134,034.73 and 459,206.90

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Solution

The fourth proportional to 821,780.06, 1,134,034.73 and 459,206.90 is: 633,693.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,780.06 : 1,134,034.73 = 459,206.90 : x
  2. Step 2: Convert to fraction form
    821,780.06/1,134,034.73 = 459,206.90/x
  3. Step 3: Cross multiply
    821,780.06x = 1,134,034.73 × 459,206.90
  4. Step 4: Simplify right side
    821,780.06x = 520,756,568,872.53
  5. Step 5: Solve for x
    x = 520,756,568,872.53/821,780.06
  6. Step 6: Final answer
    x = 633,693.36

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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.