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Finding the Fourth Proportional to 794,616.40, 1,191,898 and 345,337.28

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Solution

The fourth proportional to 794,616.40, 1,191,898 and 345,337.28 is: 517,994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,616.40 : 1,191,898 = 345,337.28 : x
  2. Step 2: Convert to fraction form
    794,616.40/1,191,898 = 345,337.28/x
  3. Step 3: Cross multiply
    794,616.40x = 1,191,898 × 345,337.28
  4. Step 4: Simplify right side
    794,616.40x = 411,606,813,357.44
  5. Step 5: Solve for x
    x = 411,606,813,357.44/794,616.40
  6. Step 6: Final answer
    x = 517,994.36

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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.