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Finding the Fourth Proportional to 559,409.12, 838,781.76 and 222,268.88

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Solution

The fourth proportional to 559,409.12, 838,781.76 and 222,268.88 is: 333,271.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,409.12 : 838,781.76 = 222,268.88 : x
  2. Step 2: Convert to fraction form
    559,409.12/838,781.76 = 222,268.88/x
  3. Step 3: Cross multiply
    559,409.12x = 838,781.76 × 222,268.88
  4. Step 4: Simplify right side
    559,409.12x = 186,435,082,359.63
  5. Step 5: Solve for x
    x = 186,435,082,359.63/559,409.12
  6. Step 6: Final answer
    x = 333,271.44

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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.