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Finding the Fourth Proportional to 1,788,962.44, 2,683,465.44 and 991,800.76

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Solution

The fourth proportional to 1,788,962.44, 2,683,465.44 and 991,800.76 is: 1,487,713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,962.44 : 2,683,465.44 = 991,800.76 : x
  2. Step 2: Convert to fraction form
    1,788,962.44/2,683,465.44 = 991,800.76/x
  3. Step 3: Cross multiply
    1,788,962.44x = 2,683,465.44 × 991,800.76
  4. Step 4: Simplify right side
    1,788,962.44x = 2,661,463,062,825.73
  5. Step 5: Solve for x
    x = 2,661,463,062,825.73/1,788,962.44
  6. Step 6: Final answer
    x = 1,487,713.21

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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.