Home / 395,222.96-592,928.76-128,983.98

Finding the Fourth Proportional to 395,222.96, 592,928.76 and 128,983.98

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Solution

The fourth proportional to 395,222.96, 592,928.76 and 128,983.98 is: 193,506.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,222.96 : 592,928.76 = 128,983.98 : x
  2. Step 2: Convert to fraction form
    395,222.96/592,928.76 = 128,983.98/x
  3. Step 3: Cross multiply
    395,222.96x = 592,928.76 × 128,983.98
  4. Step 4: Simplify right side
    395,222.96x = 76,478,311,321.26
  5. Step 5: Solve for x
    x = 76,478,311,321.26/395,222.96
  6. Step 6: Final answer
    x = 193,506.75

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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.