Home / 821,795.12-1,134,055.55-459,221.96

Finding the Fourth Proportional to 821,795.12, 1,134,055.55 and 459,221.96

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Solution

The fourth proportional to 821,795.12, 1,134,055.55 and 459,221.96 is: 633,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,795.12 : 1,134,055.55 = 459,221.96 : x
  2. Step 2: Convert to fraction form
    821,795.12/1,134,055.55 = 459,221.96/x
  3. Step 3: Cross multiply
    821,795.12x = 1,134,055.55 × 459,221.96
  4. Step 4: Simplify right side
    821,795.12x = 520,783,204,453.49
  5. Step 5: Solve for x
    x = 520,783,204,453.49/821,795.12
  6. Step 6: Final answer
    x = 633,714.16

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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.