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Finding the Fourth Proportional to 403,929.20, 605,602.20 and 226,490.60

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Solution

The fourth proportional to 403,929.20, 605,602.20 and 226,490.60 is: 339,572.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,929.20 : 605,602.20 = 226,490.60 : x
  2. Step 2: Convert to fraction form
    403,929.20/605,602.20 = 226,490.60/x
  3. Step 3: Cross multiply
    403,929.20x = 605,602.20 × 226,490.60
  4. Step 4: Simplify right side
    403,929.20x = 137,163,205,639.32
  5. Step 5: Solve for x
    x = 137,163,205,639.32/403,929.20
  6. Step 6: Final answer
    x = 339,572.39

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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.