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Finding the Fourth Proportional to 355,187.60, 532,781.40 and 222,477.20

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Solution

The fourth proportional to 355,187.60, 532,781.40 and 222,477.20 is: 333,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,187.60 : 532,781.40 = 222,477.20 : x
  2. Step 2: Convert to fraction form
    355,187.60/532,781.40 = 222,477.20/x
  3. Step 3: Cross multiply
    355,187.60x = 532,781.40 × 222,477.20
  4. Step 4: Simplify right side
    355,187.60x = 118,531,714,084.08
  5. Step 5: Solve for x
    x = 118,531,714,084.08/355,187.60
  6. Step 6: Final answer
    x = 333,715.80

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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.