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Finding the Fourth Proportional to 1,736,987.60, 2,608,591.80 and 1,681,000.40

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Solution

The fourth proportional to 1,736,987.60, 2,608,591.80 and 1,681,000.40 is: 2,524,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736,987.60 : 2,608,591.80 = 1,681,000.40 : x
  2. Step 2: Convert to fraction form
    1,736,987.60/2,608,591.80 = 1,681,000.40/x
  3. Step 3: Cross multiply
    1,736,987.60x = 2,608,591.80 × 1,681,000.40
  4. Step 4: Simplify right side
    1,736,987.60x = 4,385,043,859,236.72
  5. Step 5: Solve for x
    x = 4,385,043,859,236.72/1,736,987.60
  6. Step 6: Final answer
    x = 2,524,510.74

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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.