Home / 286,173.54-428,973.57-143,584.38

Finding the Fourth Proportional to 286,173.54, 428,973.57 and 143,584.38

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Solution

The fourth proportional to 286,173.54, 428,973.57 and 143,584.38 is: 215,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,173.54 : 428,973.57 = 143,584.38 : x
  2. Step 2: Convert to fraction form
    286,173.54/428,973.57 = 143,584.38/x
  3. Step 3: Cross multiply
    286,173.54x = 428,973.57 × 143,584.38
  4. Step 4: Simplify right side
    286,173.54x = 61,593,904,084.84
  5. Step 5: Solve for x
    x = 61,593,904,084.84/286,173.54
  6. Step 6: Final answer
    x = 215,232.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.