Home / 286,039.48-394,807.04-195,432.06

Finding the Fourth Proportional to 286,039.48, 394,807.04 and 195,432.06

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Solution

The fourth proportional to 286,039.48, 394,807.04 and 195,432.06 is: 269,745.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,039.48 : 394,807.04 = 195,432.06 : x
  2. Step 2: Convert to fraction form
    286,039.48/394,807.04 = 195,432.06/x
  3. Step 3: Cross multiply
    286,039.48x = 394,807.04 × 195,432.06
  4. Step 4: Simplify right side
    286,039.48x = 77,157,953,129.70
  5. Step 5: Solve for x
    x = 77,157,953,129.70/286,039.48
  6. Step 6: Final answer
    x = 269,745.82

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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.