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Finding the Fourth Proportional to 1,894,630.10, 2,614,614.57 and 1,078,837.07

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Solution

The fourth proportional to 1,894,630.10, 2,614,614.57 and 1,078,837.07 is: 1,488,809.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894,630.10 : 2,614,614.57 = 1,078,837.07 : x
  2. Step 2: Convert to fraction form
    1,894,630.10/2,614,614.57 = 1,078,837.07/x
  3. Step 3: Cross multiply
    1,894,630.10x = 2,614,614.57 × 1,078,837.07
  4. Step 4: Simplify right side
    1,894,630.10x = 2,820,743,108,805.04
  5. Step 5: Solve for x
    x = 2,820,743,108,805.04/1,894,630.10
  6. Step 6: Final answer
    x = 1,488,809.41

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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.