Home / 417,965.78-576,760.82-245,890.59

Finding the Fourth Proportional to 417,965.78, 576,760.82 and 245,890.59

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Solution

The fourth proportional to 417,965.78, 576,760.82 and 245,890.59 is: 339,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,965.78 : 576,760.82 = 245,890.59 : x
  2. Step 2: Convert to fraction form
    417,965.78/576,760.82 = 245,890.59/x
  3. Step 3: Cross multiply
    417,965.78x = 576,760.82 × 245,890.59
  4. Step 4: Simplify right side
    417,965.78x = 141,820,057,089.23
  5. Step 5: Solve for x
    x = 141,820,057,089.23/417,965.78
  6. Step 6: Final answer
    x = 339,310.22

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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.