Home / 689,675.73-951,609.87-403,140.39

Finding the Fourth Proportional to 689,675.73, 951,609.87 and 403,140.39

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Solution

The fourth proportional to 689,675.73, 951,609.87 and 403,140.39 is: 556,250.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,675.73 : 951,609.87 = 403,140.39 : x
  2. Step 2: Convert to fraction form
    689,675.73/951,609.87 = 403,140.39/x
  3. Step 3: Cross multiply
    689,675.73x = 951,609.87 × 403,140.39
  4. Step 4: Simplify right side
    689,675.73x = 383,632,374,119.65
  5. Step 5: Solve for x
    x = 383,632,374,119.65/689,675.73
  6. Step 6: Final answer
    x = 556,250.36

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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.