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Finding the Fourth Proportional to 486,208.47, 671,014.33 and 271,368.53

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Solution

The fourth proportional to 486,208.47, 671,014.33 and 271,368.53 is: 374,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,208.47 : 671,014.33 = 271,368.53 : x
  2. Step 2: Convert to fraction form
    486,208.47/671,014.33 = 271,368.53/x
  3. Step 3: Cross multiply
    486,208.47x = 671,014.33 × 271,368.53
  4. Step 4: Simplify right side
    486,208.47x = 182,092,170,823.85
  5. Step 5: Solve for x
    x = 182,092,170,823.85/486,208.47
  6. Step 6: Final answer
    x = 374,514.60

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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.