Home / 821,788.78-1,134,046.72-459,215.62

Finding the Fourth Proportional to 821,788.78, 1,134,046.72 and 459,215.62

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Solution

The fourth proportional to 821,788.78, 1,134,046.72 and 459,215.62 is: 633,705.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,788.78 : 1,134,046.72 = 459,215.62 : x
  2. Step 2: Convert to fraction form
    821,788.78/1,134,046.72 = 459,215.62/x
  3. Step 3: Cross multiply
    821,788.78x = 1,134,046.72 × 459,215.62
  4. Step 4: Simplify right side
    821,788.78x = 520,771,967,633.77
  5. Step 5: Solve for x
    x = 520,771,967,633.77/821,788.78
  6. Step 6: Final answer
    x = 633,705.38

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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.