Home / 445,127.45-613,936.82-383,143.46

Finding the Fourth Proportional to 445,127.45, 613,936.82 and 383,143.46

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Solution

The fourth proportional to 445,127.45, 613,936.82 and 383,143.46 is: 528,446.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,127.45 : 613,936.82 = 383,143.46 : x
  2. Step 2: Convert to fraction form
    445,127.45/613,936.82 = 383,143.46/x
  3. Step 3: Cross multiply
    445,127.45x = 613,936.82 × 383,143.46
  4. Step 4: Simplify right side
    445,127.45x = 235,225,875,324.37
  5. Step 5: Solve for x
    x = 235,225,875,324.37/445,127.45
  6. Step 6: Final answer
    x = 528,446.13

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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.