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Finding the Fourth Proportional to 1,993,659.68, 2,990,532 and 714,350.72

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Solution

The fourth proportional to 1,993,659.68, 2,990,532 and 714,350.72 is: 1,071,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,659.68 : 2,990,532 = 714,350.72 : x
  2. Step 2: Convert to fraction form
    1,993,659.68/2,990,532 = 714,350.72/x
  3. Step 3: Cross multiply
    1,993,659.68x = 2,990,532 × 714,350.72
  4. Step 4: Simplify right side
    1,993,659.68x = 2,136,288,687,383.04
  5. Step 5: Solve for x
    x = 2,136,288,687,383.04/1,993,659.68
  6. Step 6: Final answer
    x = 1,071,541.30

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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.