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Finding the Fourth Proportional to 768,897.60, 1,154,512.80 and 591,604.80

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Solution

The fourth proportional to 768,897.60, 1,154,512.80 and 591,604.80 is: 888,304.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,897.60 : 1,154,512.80 = 591,604.80 : x
  2. Step 2: Convert to fraction form
    768,897.60/1,154,512.80 = 591,604.80/x
  3. Step 3: Cross multiply
    768,897.60x = 1,154,512.80 × 591,604.80
  4. Step 4: Simplify right side
    768,897.60x = 683,015,314,141.44
  5. Step 5: Solve for x
    x = 683,015,314,141.44/768,897.60
  6. Step 6: Final answer
    x = 888,304.65

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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.