Home / 839,438.09-1,259,528.93-439,983.89

Finding the Fourth Proportional to 839,438.09, 1,259,528.93 and 439,983.89

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Solution

The fourth proportional to 839,438.09, 1,259,528.93 and 439,983.89 is: 660,170.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,438.09 : 1,259,528.93 = 439,983.89 : x
  2. Step 2: Convert to fraction form
    839,438.09/1,259,528.93 = 439,983.89/x
  3. Step 3: Cross multiply
    839,438.09x = 1,259,528.93 × 439,983.89
  4. Step 4: Simplify right side
    839,438.09x = 554,172,438,188.94
  5. Step 5: Solve for x
    x = 554,172,438,188.94/839,438.09
  6. Step 6: Final answer
    x = 660,170.71

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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.