Home / 1,328,836.51-1,993,545.46-430,369.07

Finding the Fourth Proportional to 1,328,836.51, 1,993,545.46 and 430,369.07

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Solution

The fourth proportional to 1,328,836.51, 1,993,545.46 and 430,369.07 is: 645,647.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,836.51 : 1,993,545.46 = 430,369.07 : x
  2. Step 2: Convert to fraction form
    1,328,836.51/1,993,545.46 = 430,369.07/x
  3. Step 3: Cross multiply
    1,328,836.51x = 1,993,545.46 × 430,369.07
  4. Step 4: Simplify right side
    1,328,836.51x = 857,960,299,793.12
  5. Step 5: Solve for x
    x = 857,960,299,793.12/1,328,836.51
  6. Step 6: Final answer
    x = 645,647.75

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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.