Home / 821,786.11-1,134,043.03-459,212.93

Finding the Fourth Proportional to 821,786.11, 1,134,043.03 and 459,212.93

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Solution

The fourth proportional to 821,786.11, 1,134,043.03 and 459,212.93 is: 633,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,786.11 : 1,134,043.03 = 459,212.93 : x
  2. Step 2: Convert to fraction form
    821,786.11/1,134,043.03 = 459,212.93/x
  3. Step 3: Cross multiply
    821,786.11x = 1,134,043.03 × 459,212.93
  4. Step 4: Simplify right side
    821,786.11x = 520,767,221,708.84
  5. Step 5: Solve for x
    x = 520,767,221,708.84/821,786.11
  6. Step 6: Final answer
    x = 633,701.66

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Double scale
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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.