Home / 1,386,355.53-2,079,516.83-439,734.45

Finding the Fourth Proportional to 1,386,355.53, 2,079,516.83 and 439,734.45

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Solution

The fourth proportional to 1,386,355.53, 2,079,516.83 and 439,734.45 is: 659,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,355.53 : 2,079,516.83 = 439,734.45 : x
  2. Step 2: Convert to fraction form
    1,386,355.53/2,079,516.83 = 439,734.45/x
  3. Step 3: Cross multiply
    1,386,355.53x = 2,079,516.83 × 439,734.45
  4. Step 4: Simplify right side
    1,386,355.53x = 914,435,187,307.12
  5. Step 5: Solve for x
    x = 914,435,187,307.12/1,386,355.53
  6. Step 6: Final answer
    x = 659,596.45

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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.