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Finding the Fourth Proportional to 2,787,551.60, 4,190,658.60 and 2,376,978.80

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Solution

The fourth proportional to 2,787,551.60, 4,190,658.60 and 2,376,978.80 is: 3,573,425.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787,551.60 : 4,190,658.60 = 2,376,978.80 : x
  2. Step 2: Convert to fraction form
    2,787,551.60/4,190,658.60 = 2,376,978.80/x
  3. Step 3: Cross multiply
    2,787,551.60x = 4,190,658.60 × 2,376,978.80
  4. Step 4: Simplify right side
    2,787,551.60x = 9,961,106,650,237.68
  5. Step 5: Solve for x
    x = 9,961,106,650,237.68/2,787,551.60
  6. Step 6: Final answer
    x = 3,573,425.03

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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.