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Finding the Fourth Proportional to 5,278,546.60, 7,409,871.80 and 5,278,546.60

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Solution

The fourth proportional to 5,278,546.60, 7,409,871.80 and 5,278,546.60 is: 7,409,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278,546.60 : 7,409,871.80 = 5,278,546.60 : x
  2. Step 2: Convert to fraction form
    5,278,546.60/7,409,871.80 = 5,278,546.60/x
  3. Step 3: Cross multiply
    5,278,546.60x = 7,409,871.80 × 5,278,546.60
  4. Step 4: Simplify right side
    5,278,546.60x = 39,113,353,596,325.88
  5. Step 5: Solve for x
    x = 39,113,353,596,325.88/5,278,546.60
  6. Step 6: Final answer
    x = 7,409,871.80

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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.