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Finding the Fourth Proportional to 405,198.60, 606,923.10 and 352,710.60

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Solution

The fourth proportional to 405,198.60, 606,923.10 and 352,710.60 is: 528,304.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,198.60 : 606,923.10 = 352,710.60 : x
  2. Step 2: Convert to fraction form
    405,198.60/606,923.10 = 352,710.60/x
  3. Step 3: Cross multiply
    405,198.60x = 606,923.10 × 352,710.60
  4. Step 4: Simplify right side
    405,198.60x = 214,068,210,754.86
  5. Step 5: Solve for x
    x = 214,068,210,754.86/405,198.60
  6. Step 6: Final answer
    x = 528,304.42

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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.