Home / 283,638.94-391,421.82-154,577.47

Finding the Fourth Proportional to 283,638.94, 391,421.82 and 154,577.47

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Solution

The fourth proportional to 283,638.94, 391,421.82 and 154,577.47 is: 213,316.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,638.94 : 391,421.82 = 154,577.47 : x
  2. Step 2: Convert to fraction form
    283,638.94/391,421.82 = 154,577.47/x
  3. Step 3: Cross multiply
    283,638.94x = 391,421.82 × 154,577.47
  4. Step 4: Simplify right side
    283,638.94x = 60,504,994,638.40
  5. Step 5: Solve for x
    x = 60,504,994,638.40/283,638.94
  6. Step 6: Final answer
    x = 213,316.95

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1.5x scale

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.