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Finding the Fourth Proportional to 505,701.38, 758,662.86 and 190,158.28

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Solution

The fourth proportional to 505,701.38, 758,662.86 and 190,158.28 is: 285,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,701.38 : 758,662.86 = 190,158.28 : x
  2. Step 2: Convert to fraction form
    505,701.38/758,662.86 = 190,158.28/x
  3. Step 3: Cross multiply
    505,701.38x = 758,662.86 × 190,158.28
  4. Step 4: Simplify right side
    505,701.38x = 144,266,026,571.76
  5. Step 5: Solve for x
    x = 144,266,026,571.76/505,701.38
  6. Step 6: Final answer
    x = 285,279.09

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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.