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Finding the Fourth Proportional to 324,016.60, 485,368.80 and 183,611.20

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Solution

The fourth proportional to 324,016.60, 485,368.80 and 183,611.20 is: 275,045.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,016.60 : 485,368.80 = 183,611.20 : x
  2. Step 2: Convert to fraction form
    324,016.60/485,368.80 = 183,611.20/x
  3. Step 3: Cross multiply
    324,016.60x = 485,368.80 × 183,611.20
  4. Step 4: Simplify right side
    324,016.60x = 89,119,147,810.56
  5. Step 5: Solve for x
    x = 89,119,147,810.56/324,016.60
  6. Step 6: Final answer
    x = 275,045.01

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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.