Home / 283,629.69-391,409.06-154,568.21

Finding the Fourth Proportional to 283,629.69, 391,409.06 and 154,568.21

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Solution

The fourth proportional to 283,629.69, 391,409.06 and 154,568.21 is: 213,304.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,629.69 : 391,409.06 = 154,568.21 : x
  2. Step 2: Convert to fraction form
    283,629.69/391,409.06 = 154,568.21/x
  3. Step 3: Cross multiply
    283,629.69x = 391,409.06 × 154,568.21
  4. Step 4: Simplify right side
    283,629.69x = 60,499,395,052.10
  5. Step 5: Solve for x
    x = 60,499,395,052.10/283,629.69
  6. Step 6: Final answer
    x = 213,304.17

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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.