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Finding the Fourth Proportional to 321,602.55, 482,305.01 and 222,400.23

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Solution

The fourth proportional to 321,602.55, 482,305.01 and 222,400.23 is: 333,532.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,602.55 : 482,305.01 = 222,400.23 : x
  2. Step 2: Convert to fraction form
    321,602.55/482,305.01 = 222,400.23/x
  3. Step 3: Cross multiply
    321,602.55x = 482,305.01 × 222,400.23
  4. Step 4: Simplify right side
    321,602.55x = 107,264,744,042.15
  5. Step 5: Solve for x
    x = 107,264,744,042.15/321,602.55
  6. Step 6: Final answer
    x = 333,532.01

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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.