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Finding the Fourth Proportional to 882,671.40, 1,322,970.30 and 408,354.84

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Solution

The fourth proportional to 882,671.40, 1,322,970.30 and 408,354.84 is: 612,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,671.40 : 1,322,970.30 = 408,354.84 : x
  2. Step 2: Convert to fraction form
    882,671.40/1,322,970.30 = 408,354.84/x
  3. Step 3: Cross multiply
    882,671.40x = 1,322,970.30 × 408,354.84
  4. Step 4: Simplify right side
    882,671.40x = 540,241,325,181.25
  5. Step 5: Solve for x
    x = 540,241,325,181.25/882,671.40
  6. Step 6: Final answer
    x = 612,052.60

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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.