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Finding the Fourth Proportional to 624,594.56, 936,751.68 and 287,311.28

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Solution

The fourth proportional to 624,594.56, 936,751.68 and 287,311.28 is: 430,902.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,594.56 : 936,751.68 = 287,311.28 : x
  2. Step 2: Convert to fraction form
    624,594.56/936,751.68 = 287,311.28/x
  3. Step 3: Cross multiply
    624,594.56x = 936,751.68 × 287,311.28
  4. Step 4: Simplify right side
    624,594.56x = 269,139,319,539.19
  5. Step 5: Solve for x
    x = 269,139,319,539.19/624,594.56
  6. Step 6: Final answer
    x = 430,902.44

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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.