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Finding the Fourth Proportional to 624,291.90, 936,080.16 and 191,896.77

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Solution

The fourth proportional to 624,291.90, 936,080.16 and 191,896.77 is: 287,735.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,291.90 : 936,080.16 = 191,896.77 : x
  2. Step 2: Convert to fraction form
    624,291.90/936,080.16 = 191,896.77/x
  3. Step 3: Cross multiply
    624,291.90x = 936,080.16 × 191,896.77
  4. Step 4: Simplify right side
    624,291.90x = 179,630,759,165.08
  5. Step 5: Solve for x
    x = 179,630,759,165.08/624,291.90
  6. Step 6: Final answer
    x = 287,735.21

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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.