Home / 338,786.19-507,291.53-238,402.89

Finding the Fourth Proportional to 338,786.19, 507,291.53 and 238,402.89

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Solution

The fourth proportional to 338,786.19, 507,291.53 and 238,402.89 is: 356,979.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,786.19 : 507,291.53 = 238,402.89 : x
  2. Step 2: Convert to fraction form
    338,786.19/507,291.53 = 238,402.89/x
  3. Step 3: Cross multiply
    338,786.19x = 507,291.53 × 238,402.89
  4. Step 4: Simplify right side
    338,786.19x = 120,939,765,632.51
  5. Step 5: Solve for x
    x = 120,939,765,632.51/338,786.19
  6. Step 6: Final answer
    x = 356,979.62

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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.