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Finding the Fourth Proportional to 405,983.60, 608,100.60 and 335,999.60

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Solution

The fourth proportional to 405,983.60, 608,100.60 and 335,999.60 is: 503,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,983.60 : 608,100.60 = 335,999.60 : x
  2. Step 2: Convert to fraction form
    405,983.60/608,100.60 = 335,999.60/x
  3. Step 3: Cross multiply
    405,983.60x = 608,100.60 × 335,999.60
  4. Step 4: Simplify right side
    405,983.60x = 204,321,558,359.76
  5. Step 5: Solve for x
    x = 204,321,558,359.76/405,983.60
  6. Step 6: Final answer
    x = 503,275.40

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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.