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Finding the Fourth Proportional to 321,602.40, 482,403.60 and 222,069.60

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Solution

The fourth proportional to 321,602.40, 482,403.60 and 222,069.60 is: 333,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,602.40 : 482,403.60 = 222,069.60 : x
  2. Step 2: Convert to fraction form
    321,602.40/482,403.60 = 222,069.60/x
  3. Step 3: Cross multiply
    321,602.40x = 482,403.60 × 222,069.60
  4. Step 4: Simplify right side
    321,602.40x = 107,127,174,490.56
  5. Step 5: Solve for x
    x = 107,127,174,490.56/321,602.40
  6. Step 6: Final answer
    x = 333,104.40

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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.