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Finding the Fourth Proportional to 1,773,118.60, 2,657,928.30 and 873,824.20

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Solution

The fourth proportional to 1,773,118.60, 2,657,928.30 and 873,824.20 is: 1,309,874.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,773,118.60 : 2,657,928.30 = 873,824.20 : x
  2. Step 2: Convert to fraction form
    1,773,118.60/2,657,928.30 = 873,824.20/x
  3. Step 3: Cross multiply
    1,773,118.60x = 2,657,928.30 × 873,824.20
  4. Step 4: Simplify right side
    1,773,118.60x = 2,322,562,070,404.86
  5. Step 5: Solve for x
    x = 2,322,562,070,404.86/1,773,118.60
  6. Step 6: Final answer
    x = 1,309,874.07

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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.