Home / 218,783.13-328,174.67-52,571.13

Finding the Fourth Proportional to 218,783.13, 328,174.67 and 52,571.13

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Solution

The fourth proportional to 218,783.13, 328,174.67 and 52,571.13 is: 78,856.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,783.13 : 328,174.67 = 52,571.13 : x
  2. Step 2: Convert to fraction form
    218,783.13/328,174.67 = 52,571.13/x
  3. Step 3: Cross multiply
    218,783.13x = 328,174.67 × 52,571.13
  4. Step 4: Simplify right side
    218,783.13x = 17,252,512,140.05
  5. Step 5: Solve for x
    x = 17,252,512,140.05/218,783.13
  6. Step 6: Final answer
    x = 78,856.69

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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.