Home / 418,977.19-578,183.66-227,987.29

Finding the Fourth Proportional to 418,977.19, 578,183.66 and 227,987.29

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Solution

The fourth proportional to 418,977.19, 578,183.66 and 227,987.29 is: 314,619.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,977.19 : 578,183.66 = 227,987.29 : x
  2. Step 2: Convert to fraction form
    418,977.19/578,183.66 = 227,987.29/x
  3. Step 3: Cross multiply
    418,977.19x = 578,183.66 × 227,987.29
  4. Step 4: Simplify right side
    418,977.19x = 131,818,525,765.68
  5. Step 5: Solve for x
    x = 131,818,525,765.68/418,977.19
  6. Step 6: Final answer
    x = 314,619.81

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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.