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Finding the Fourth Proportional to 5,321,809.60, 7,982,714.40 and 3,642,193.60

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Solution

The fourth proportional to 5,321,809.60, 7,982,714.40 and 3,642,193.60 is: 5,463,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321,809.60 : 7,982,714.40 = 3,642,193.60 : x
  2. Step 2: Convert to fraction form
    5,321,809.60/7,982,714.40 = 3,642,193.60/x
  3. Step 3: Cross multiply
    5,321,809.60x = 7,982,714.40 × 3,642,193.60
  4. Step 4: Simplify right side
    5,321,809.60x = 29,074,591,298,307.84
  5. Step 5: Solve for x
    x = 29,074,591,298,307.84/5,321,809.60
  6. Step 6: Final answer
    x = 5,463,290.40

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Double scale
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Similar ratio
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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.