Home / 439,123.58-605,921.66-255,402.82

Finding the Fourth Proportional to 439,123.58, 605,921.66 and 255,402.82

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Solution

The fourth proportional to 439,123.58, 605,921.66 and 255,402.82 is: 352,415.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,123.58 : 605,921.66 = 255,402.82 : x
  2. Step 2: Convert to fraction form
    439,123.58/605,921.66 = 255,402.82/x
  3. Step 3: Cross multiply
    439,123.58x = 605,921.66 × 255,402.82
  4. Step 4: Simplify right side
    439,123.58x = 154,754,102,537.87
  5. Step 5: Solve for x
    x = 154,754,102,537.87/439,123.58
  6. Step 6: Final answer
    x = 352,415.83

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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.