Home / 821,161.83-1,133,191.38-458,581.86

Finding the Fourth Proportional to 821,161.83, 1,133,191.38 and 458,581.86

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Solution

The fourth proportional to 821,161.83, 1,133,191.38 and 458,581.86 is: 632,836.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,161.83 : 1,133,191.38 = 458,581.86 : x
  2. Step 2: Convert to fraction form
    821,161.83/1,133,191.38 = 458,581.86/x
  3. Step 3: Cross multiply
    821,161.83x = 1,133,191.38 × 458,581.86
  4. Step 4: Simplify right side
    821,161.83x = 519,661,010,776.37
  5. Step 5: Solve for x
    x = 519,661,010,776.37/821,161.83
  6. Step 6: Final answer
    x = 632,836.30

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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.