Home / 689,786.93-951,899.08-383,858.07

Finding the Fourth Proportional to 689,786.93, 951,899.08 and 383,858.07

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Solution

The fourth proportional to 689,786.93, 951,899.08 and 383,858.07 is: 529,720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,786.93 : 951,899.08 = 383,858.07 : x
  2. Step 2: Convert to fraction form
    689,786.93/951,899.08 = 383,858.07/x
  3. Step 3: Cross multiply
    689,786.93x = 951,899.08 × 383,858.07
  4. Step 4: Simplify right side
    689,786.93x = 365,394,143,683.58
  5. Step 5: Solve for x
    x = 365,394,143,683.58/689,786.93
  6. Step 6: Final answer
    x = 529,720.31

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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.