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Finding the Fourth Proportional to 326,773.62, 490,190.67 and 127,109.16

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Solution

The fourth proportional to 326,773.62, 490,190.67 and 127,109.16 is: 190,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,773.62 : 490,190.67 = 127,109.16 : x
  2. Step 2: Convert to fraction form
    326,773.62/490,190.67 = 127,109.16/x
  3. Step 3: Cross multiply
    326,773.62x = 490,190.67 × 127,109.16
  4. Step 4: Simplify right side
    326,773.62x = 62,307,724,303.54
  5. Step 5: Solve for x
    x = 62,307,724,303.54/326,773.62
  6. Step 6: Final answer
    x = 190,675.50

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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.