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Finding the Fourth Proportional to 5,228,409.60, 7,842,844.80 and 2,953,900.80

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Solution

The fourth proportional to 5,228,409.60, 7,842,844.80 and 2,953,900.80 is: 4,430,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228,409.60 : 7,842,844.80 = 2,953,900.80 : x
  2. Step 2: Convert to fraction form
    5,228,409.60/7,842,844.80 = 2,953,900.80/x
  3. Step 3: Cross multiply
    5,228,409.60x = 7,842,844.80 × 2,953,900.80
  4. Step 4: Simplify right side
    5,228,409.60x = 23,166,985,528,995.84
  5. Step 5: Solve for x
    x = 23,166,985,528,995.84/5,228,409.60
  6. Step 6: Final answer
    x = 4,430,981.37

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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.