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Finding the Fourth Proportional to 416,599.20, 623,319.30 and 276,631.20

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Solution

The fourth proportional to 416,599.20, 623,319.30 and 276,631.20 is: 413,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,599.20 : 623,319.30 = 276,631.20 : x
  2. Step 2: Convert to fraction form
    416,599.20/623,319.30 = 276,631.20/x
  3. Step 3: Cross multiply
    416,599.20x = 623,319.30 × 276,631.20
  4. Step 4: Simplify right side
    416,599.20x = 172,429,565,942.16
  5. Step 5: Solve for x
    x = 172,429,565,942.16/416,599.20
  6. Step 6: Final answer
    x = 413,897.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.