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Finding the Fourth Proportional to 448,781.36, 619,315.33 and 255,189.08

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Solution

The fourth proportional to 448,781.36, 619,315.33 and 255,189.08 is: 352,159.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,781.36 : 619,315.33 = 255,189.08 : x
  2. Step 2: Convert to fraction form
    448,781.36/619,315.33 = 255,189.08/x
  3. Step 3: Cross multiply
    448,781.36x = 619,315.33 × 255,189.08
  4. Step 4: Simplify right side
    448,781.36x = 158,042,508,862.97
  5. Step 5: Solve for x
    x = 158,042,508,862.97/448,781.36
  6. Step 6: Final answer
    x = 352,159.26

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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.