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Finding the Fourth Proportional to 6,573,619.20, 9,860,428.80 and 4,782,028.80

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Solution

The fourth proportional to 6,573,619.20, 9,860,428.80 and 4,782,028.80 is: 7,173,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,573,619.20 : 9,860,428.80 = 4,782,028.80 : x
  2. Step 2: Convert to fraction form
    6,573,619.20/9,860,428.80 = 4,782,028.80/x
  3. Step 3: Cross multiply
    6,573,619.20x = 9,860,428.80 × 4,782,028.80
  4. Step 4: Simplify right side
    6,573,619.20x = 47,152,854,501,949.45
  5. Step 5: Solve for x
    x = 47,152,854,501,949.45/6,573,619.20
  6. Step 6: Final answer
    x = 7,173,043.20

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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.