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Finding the Fourth Proportional to 416,905.54, 622,307.26 and 358,118.98

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Solution

The fourth proportional to 416,905.54, 622,307.26 and 358,118.98 is: 534,557.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,905.54 : 622,307.26 = 358,118.98 : x
  2. Step 2: Convert to fraction form
    416,905.54/622,307.26 = 358,118.98/x
  3. Step 3: Cross multiply
    416,905.54x = 622,307.26 × 358,118.98
  4. Step 4: Simplify right side
    416,905.54x = 222,860,041,197.80
  5. Step 5: Solve for x
    x = 222,860,041,197.80/416,905.54
  6. Step 6: Final answer
    x = 534,557.64

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.