Home / 386,018.25-579,045.85-186,506.44

Finding the Fourth Proportional to 386,018.25, 579,045.85 and 186,506.44

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Solution

The fourth proportional to 386,018.25, 579,045.85 and 186,506.44 is: 279,768.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,018.25 : 579,045.85 = 186,506.44 : x
  2. Step 2: Convert to fraction form
    386,018.25/579,045.85 = 186,506.44/x
  3. Step 3: Cross multiply
    386,018.25x = 579,045.85 × 186,506.44
  4. Step 4: Simplify right side
    386,018.25x = 107,995,778,166.39
  5. Step 5: Solve for x
    x = 107,995,778,166.39/386,018.25
  6. Step 6: Final answer
    x = 279,768.58

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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.