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Finding the Fourth Proportional to 1,609,759.84, 2,220,984.14 and 964,944.76

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Solution

The fourth proportional to 1,609,759.84, 2,220,984.14 and 964,944.76 is: 1,331,333.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,759.84 : 2,220,984.14 = 964,944.76 : x
  2. Step 2: Convert to fraction form
    1,609,759.84/2,220,984.14 = 964,944.76/x
  3. Step 3: Cross multiply
    1,609,759.84x = 2,220,984.14 × 964,944.76
  4. Step 4: Simplify right side
    1,609,759.84x = 2,143,127,007,936.11
  5. Step 5: Solve for x
    x = 2,143,127,007,936.11/1,609,759.84
  6. Step 6: Final answer
    x = 1,331,333.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.