Home / 418,939.59-578,148.94-227,965.29

Finding the Fourth Proportional to 418,939.59, 578,148.94 and 227,965.29

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Solution

The fourth proportional to 418,939.59, 578,148.94 and 227,965.29 is: 314,598.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,939.59 : 578,148.94 = 227,965.29 : x
  2. Step 2: Convert to fraction form
    418,939.59/578,148.94 = 227,965.29/x
  3. Step 3: Cross multiply
    418,939.59x = 578,148.94 × 227,965.29
  4. Step 4: Simplify right side
    418,939.59x = 131,797,888,887.19
  5. Step 5: Solve for x
    x = 131,797,888,887.19/418,939.59
  6. Step 6: Final answer
    x = 314,598.79

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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.