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Finding the Fourth Proportional to 1,993,597.74, 2,990,439 and 714,288.60

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Solution

The fourth proportional to 1,993,597.74, 2,990,439 and 714,288.60 is: 1,071,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,597.74 : 2,990,439 = 714,288.60 : x
  2. Step 2: Convert to fraction form
    1,993,597.74/2,990,439 = 714,288.60/x
  3. Step 3: Cross multiply
    1,993,597.74x = 2,990,439 × 714,288.60
  4. Step 4: Simplify right side
    1,993,597.74x = 2,136,036,486,695.40
  5. Step 5: Solve for x
    x = 2,136,036,486,695.40/1,993,597.74
  6. Step 6: Final answer
    x = 1,071,448.09

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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.