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Finding the Fourth Proportional to 486,933.03, 671,955.03 and 272,074.86

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Solution

The fourth proportional to 486,933.03, 671,955.03 and 272,074.86 is: 375,456.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,933.03 : 671,955.03 = 272,074.86 : x
  2. Step 2: Convert to fraction form
    486,933.03/671,955.03 = 272,074.86/x
  3. Step 3: Cross multiply
    486,933.03x = 671,955.03 × 272,074.86
  4. Step 4: Simplify right side
    486,933.03x = 182,822,070,713.55
  5. Step 5: Solve for x
    x = 182,822,070,713.55/486,933.03
  6. Step 6: Final answer
    x = 375,456.29

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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.