Home / 386,583.30-579,735.90-133,795.13

Finding the Fourth Proportional to 386,583.30, 579,735.90 and 133,795.13

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Solution

The fourth proportional to 386,583.30, 579,735.90 and 133,795.13 is: 200,644.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,583.30 : 579,735.90 = 133,795.13 : x
  2. Step 2: Convert to fraction form
    386,583.30/579,735.90 = 133,795.13/x
  3. Step 3: Cross multiply
    386,583.30x = 579,735.90 × 133,795.13
  4. Step 4: Simplify right side
    386,583.30x = 77,565,837,207.49
  5. Step 5: Solve for x
    x = 77,565,837,207.49/386,583.30
  6. Step 6: Final answer
    x = 200,644.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.