Home / 1,328,587.70-1,993,197.92-430,029.59

Finding the Fourth Proportional to 1,328,587.70, 1,993,197.92 and 430,029.59

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Solution

The fourth proportional to 1,328,587.70, 1,993,197.92 and 430,029.59 is: 645,146.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,587.70 : 1,993,197.92 = 430,029.59 : x
  2. Step 2: Convert to fraction form
    1,328,587.70/1,993,197.92 = 430,029.59/x
  3. Step 3: Cross multiply
    1,328,587.70x = 1,993,197.92 × 430,029.59
  4. Step 4: Simplify right side
    1,328,587.70x = 857,134,072,210.32
  5. Step 5: Solve for x
    x = 857,134,072,210.32/1,328,587.70
  6. Step 6: Final answer
    x = 645,146.78

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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.