Home / 331,625.98-457,180.45-280,433.33

Finding the Fourth Proportional to 331,625.98, 457,180.45 and 280,433.33

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Solution

The fourth proportional to 331,625.98, 457,180.45 and 280,433.33 is: 386,606.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,625.98 : 457,180.45 = 280,433.33 : x
  2. Step 2: Convert to fraction form
    331,625.98/457,180.45 = 280,433.33/x
  3. Step 3: Cross multiply
    331,625.98x = 457,180.45 × 280,433.33
  4. Step 4: Simplify right side
    331,625.98x = 128,208,636,004.40
  5. Step 5: Solve for x
    x = 128,208,636,004.40/331,625.98
  6. Step 6: Final answer
    x = 386,606.13

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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.