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Finding the Fourth Proportional to 405,788.88, 560,000.52 and 222,038.48

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Solution

The fourth proportional to 405,788.88, 560,000.52 and 222,038.48 is: 306,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,788.88 : 560,000.52 = 222,038.48 : x
  2. Step 2: Convert to fraction form
    405,788.88/560,000.52 = 222,038.48/x
  3. Step 3: Cross multiply
    405,788.88x = 560,000.52 × 222,038.48
  4. Step 4: Simplify right side
    405,788.88x = 124,341,664,260.01
  5. Step 5: Solve for x
    x = 124,341,664,260.01/405,788.88
  6. Step 6: Final answer
    x = 306,419.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.