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Finding the Fourth Proportional to 395,580.52, 593,395.42 and 129,369.32

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Solution

The fourth proportional to 395,580.52, 593,395.42 and 129,369.32 is: 194,062.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,580.52 : 593,395.42 = 129,369.32 : x
  2. Step 2: Convert to fraction form
    395,580.52/593,395.42 = 129,369.32/x
  3. Step 3: Cross multiply
    395,580.52x = 593,395.42 × 129,369.32
  4. Step 4: Simplify right side
    395,580.52x = 76,767,161,976.51
  5. Step 5: Solve for x
    x = 76,767,161,976.51/395,580.52
  6. Step 6: Final answer
    x = 194,062.04

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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.