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Finding the Fourth Proportional to 1,837,000, 2,755,538 and 668,479.28

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Solution

The fourth proportional to 1,837,000, 2,755,538 and 668,479.28 is: 1,002,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837,000 : 2,755,538 = 668,479.28 : x
  2. Step 2: Convert to fraction form
    1,837,000/2,755,538 = 668,479.28/x
  3. Step 3: Cross multiply
    1,837,000x = 2,755,538 × 668,479.28
  4. Step 4: Simplify right side
    1,837,000x = 1,842,020,058,252.64
  5. Step 5: Solve for x
    x = 1,842,020,058,252.64/1,837,000
  6. Step 6: Final answer
    x = 1,002,732.75

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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.