Home / 1,386,239.58-2,079,433.35-439,683.30

Finding the Fourth Proportional to 1,386,239.58, 2,079,433.35 and 439,683.30

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Solution

The fourth proportional to 1,386,239.58, 2,079,433.35 and 439,683.30 is: 659,548.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,239.58 : 2,079,433.35 = 439,683.30 : x
  2. Step 2: Convert to fraction form
    1,386,239.58/2,079,433.35 = 439,683.30/x
  3. Step 3: Cross multiply
    1,386,239.58x = 2,079,433.35 × 439,683.30
  4. Step 4: Simplify right side
    1,386,239.58x = 914,292,117,458.06
  5. Step 5: Solve for x
    x = 914,292,117,458.06/1,386,239.58
  6. Step 6: Final answer
    x = 659,548.41

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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.