Home / 1,328,590.70-1,993,202.42-430,032.58

Finding the Fourth Proportional to 1,328,590.70, 1,993,202.42 and 430,032.58

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Solution

The fourth proportional to 1,328,590.70, 1,993,202.42 and 430,032.58 is: 645,151.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,590.70 : 1,993,202.42 = 430,032.58 : x
  2. Step 2: Convert to fraction form
    1,328,590.70/1,993,202.42 = 430,032.58/x
  3. Step 3: Cross multiply
    1,328,590.70x = 1,993,202.42 × 430,032.58
  4. Step 4: Simplify right side
    1,328,590.70x = 857,141,979,134.84
  5. Step 5: Solve for x
    x = 857,141,979,134.84/1,328,590.70
  6. Step 6: Final answer
    x = 645,151.27

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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.