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Finding the Fourth Proportional to 355,217.60, 532,826.40 and 222,507.20

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Solution

The fourth proportional to 355,217.60, 532,826.40 and 222,507.20 is: 333,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,217.60 : 532,826.40 = 222,507.20 : x
  2. Step 2: Convert to fraction form
    355,217.60/532,826.40 = 222,507.20/x
  3. Step 3: Cross multiply
    355,217.60x = 532,826.40 × 222,507.20
  4. Step 4: Simplify right side
    355,217.60x = 118,557,710,350.08
  5. Step 5: Solve for x
    x = 118,557,710,350.08/355,217.60
  6. Step 6: Final answer
    x = 333,760.80

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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.