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Finding the Fourth Proportional to 617,112.90, 925,737.40 and 196,290.36

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Solution

The fourth proportional to 617,112.90, 925,737.40 and 196,290.36 is: 294,457.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,112.90 : 925,737.40 = 196,290.36 : x
  2. Step 2: Convert to fraction form
    617,112.90/925,737.40 = 196,290.36/x
  3. Step 3: Cross multiply
    617,112.90x = 925,737.40 × 196,290.36
  4. Step 4: Simplify right side
    617,112.90x = 181,713,327,511.46
  5. Step 5: Solve for x
    x = 181,713,327,511.46/617,112.90
  6. Step 6: Final answer
    x = 294,457.19

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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.