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Finding the Fourth Proportional to 770,817.80, 1,076,656.60 and 770,817.80

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Solution

The fourth proportional to 770,817.80, 1,076,656.60 and 770,817.80 is: 1,076,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,817.80 : 1,076,656.60 = 770,817.80 : x
  2. Step 2: Convert to fraction form
    770,817.80/1,076,656.60 = 770,817.80/x
  3. Step 3: Cross multiply
    770,817.80x = 1,076,656.60 × 770,817.80
  4. Step 4: Simplify right side
    770,817.80x = 829,906,071,767.48
  5. Step 5: Solve for x
    x = 829,906,071,767.48/770,817.80
  6. Step 6: Final answer
    x = 1,076,656.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.