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Finding the Fourth Proportional to 505,644.40, 758,758.20 and 190,327.60

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Solution

The fourth proportional to 505,644.40, 758,758.20 and 190,327.60 is: 285,601.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,644.40 : 758,758.20 = 190,327.60 : x
  2. Step 2: Convert to fraction form
    505,644.40/758,758.20 = 190,327.60/x
  3. Step 3: Cross multiply
    505,644.40x = 758,758.20 × 190,327.60
  4. Step 4: Simplify right side
    505,644.40x = 144,412,627,186.32
  5. Step 5: Solve for x
    x = 144,412,627,186.32/505,644.40
  6. Step 6: Final answer
    x = 285,601.16

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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.