Home / 395,780.16-593,612.94-129,551.28

Finding the Fourth Proportional to 395,780.16, 593,612.94 and 129,551.28

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Solution

The fourth proportional to 395,780.16, 593,612.94 and 129,551.28 is: 194,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,780.16 : 593,612.94 = 129,551.28 : x
  2. Step 2: Convert to fraction form
    395,780.16/593,612.94 = 129,551.28/x
  3. Step 3: Cross multiply
    395,780.16x = 593,612.94 × 129,551.28
  4. Step 4: Simplify right side
    395,780.16x = 76,903,316,201.56
  5. Step 5: Solve for x
    x = 76,903,316,201.56/395,780.16
  6. Step 6: Final answer
    x = 194,308.16

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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.