Home / 386,968.72-579,765.65-330,233.08

Finding the Fourth Proportional to 386,968.72, 579,765.65 and 330,233.08

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Solution

The fourth proportional to 386,968.72, 579,765.65 and 330,233.08 is: 494,762.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,968.72 : 579,765.65 = 330,233.08 : x
  2. Step 2: Convert to fraction form
    386,968.72/579,765.65 = 330,233.08/x
  3. Step 3: Cross multiply
    386,968.72x = 579,765.65 × 330,233.08
  4. Step 4: Simplify right side
    386,968.72x = 191,457,793,378.87
  5. Step 5: Solve for x
    x = 191,457,793,378.87/386,968.72
  6. Step 6: Final answer
    x = 494,762.98

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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.