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Finding the Fourth Proportional to 395,584.16, 593,412.72 and 129,346.04

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Solution

The fourth proportional to 395,584.16, 593,412.72 and 129,346.04 is: 194,030.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,584.16 : 593,412.72 = 129,346.04 : x
  2. Step 2: Convert to fraction form
    395,584.16/593,412.72 = 129,346.04/x
  3. Step 3: Cross multiply
    395,584.16x = 593,412.72 × 129,346.04
  4. Step 4: Simplify right side
    395,584.16x = 76,755,585,417.63
  5. Step 5: Solve for x
    x = 76,755,585,417.63/395,584.16
  6. Step 6: Final answer
    x = 194,030.99

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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.