Home / 455,088.71-628,018.03-251,141.51

Finding the Fourth Proportional to 455,088.71, 628,018.03 and 251,141.51

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Solution

The fourth proportional to 455,088.71, 628,018.03 and 251,141.51 is: 346,572.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,088.71 : 628,018.03 = 251,141.51 : x
  2. Step 2: Convert to fraction form
    455,088.71/628,018.03 = 251,141.51/x
  3. Step 3: Cross multiply
    455,088.71x = 628,018.03 × 251,141.51
  4. Step 4: Simplify right side
    455,088.71x = 157,721,396,361.43
  5. Step 5: Solve for x
    x = 157,721,396,361.43/455,088.71
  6. Step 6: Final answer
    x = 346,572.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.