Home / 699,040.90-964,667.23-393,117.19

Finding the Fourth Proportional to 699,040.90, 964,667.23 and 393,117.19

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Solution

The fourth proportional to 699,040.90, 964,667.23 and 393,117.19 is: 542,496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,040.90 : 964,667.23 = 393,117.19 : x
  2. Step 2: Convert to fraction form
    699,040.90/964,667.23 = 393,117.19/x
  3. Step 3: Cross multiply
    699,040.90x = 964,667.23 × 393,117.19
  4. Step 4: Simplify right side
    699,040.90x = 379,227,270,742.68
  5. Step 5: Solve for x
    x = 379,227,270,742.68/699,040.90
  6. Step 6: Final answer
    x = 542,496.54

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Double scale
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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.