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Finding the Fourth Proportional to 737,763.58, 1,015,969.80 and 640,923.22

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Solution

The fourth proportional to 737,763.58, 1,015,969.80 and 640,923.22 is: 882,611.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,763.58 : 1,015,969.80 = 640,923.22 : x
  2. Step 2: Convert to fraction form
    737,763.58/1,015,969.80 = 640,923.22/x
  3. Step 3: Cross multiply
    737,763.58x = 1,015,969.80 × 640,923.22
  4. Step 4: Simplify right side
    737,763.58x = 651,158,635,638.76
  5. Step 5: Solve for x
    x = 651,158,635,638.76/737,763.58
  6. Step 6: Final answer
    x = 882,611.52

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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.