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Finding the Fourth Proportional to 624,584.06, 936,735.93 and 287,300.78

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Solution

The fourth proportional to 624,584.06, 936,735.93 and 287,300.78 is: 430,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,584.06 : 936,735.93 = 287,300.78 : x
  2. Step 2: Convert to fraction form
    624,584.06/936,735.93 = 287,300.78/x
  3. Step 3: Cross multiply
    624,584.06x = 936,735.93 × 287,300.78
  4. Step 4: Simplify right side
    624,584.06x = 269,124,963,343.03
  5. Step 5: Solve for x
    x = 269,124,963,343.03/624,584.06
  6. Step 6: Final answer
    x = 430,886.70

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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.