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Finding the Fourth Proportional to 1,966,905.12, 2,950,882.71 and 704,860.32

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Solution

The fourth proportional to 1,966,905.12, 2,950,882.71 and 704,860.32 is: 1,057,478.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966,905.12 : 2,950,882.71 = 704,860.32 : x
  2. Step 2: Convert to fraction form
    1,966,905.12/2,950,882.71 = 704,860.32/x
  3. Step 3: Cross multiply
    1,966,905.12x = 2,950,882.71 × 704,860.32
  4. Step 4: Simplify right side
    1,966,905.12x = 2,079,960,131,253.07
  5. Step 5: Solve for x
    x = 2,079,960,131,253.07/1,966,905.12
  6. Step 6: Final answer
    x = 1,057,478.63

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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.