Home / 283,639.67-391,415.52-154,581.45

Finding the Fourth Proportional to 283,639.67, 391,415.52 and 154,581.45

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Solution

The fourth proportional to 283,639.67, 391,415.52 and 154,581.45 is: 213,318.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,639.67 : 391,415.52 = 154,581.45 : x
  2. Step 2: Convert to fraction form
    283,639.67/391,415.52 = 154,581.45/x
  3. Step 3: Cross multiply
    283,639.67x = 391,415.52 × 154,581.45
  4. Step 4: Simplify right side
    283,639.67x = 60,505,579,522.23
  5. Step 5: Solve for x
    x = 60,505,579,522.23/283,639.67
  6. Step 6: Final answer
    x = 213,318.47

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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.