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Finding the Fourth Proportional to 654,989.66, 901,702.23 and 624,896.54

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Solution

The fourth proportional to 654,989.66, 901,702.23 and 624,896.54 is: 860,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,989.66 : 901,702.23 = 624,896.54 : x
  2. Step 2: Convert to fraction form
    654,989.66/901,702.23 = 624,896.54/x
  3. Step 3: Cross multiply
    654,989.66x = 901,702.23 × 624,896.54
  4. Step 4: Simplify right side
    654,989.66x = 563,470,603,637.28
  5. Step 5: Solve for x
    x = 563,470,603,637.28/654,989.66
  6. Step 6: Final answer
    x = 860,274.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.