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Finding the Fourth Proportional to 461,792.80, 692,786.40 and 195,416.20

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Solution

The fourth proportional to 461,792.80, 692,786.40 and 195,416.20 is: 293,165.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,792.80 : 692,786.40 = 195,416.20 : x
  2. Step 2: Convert to fraction form
    461,792.80/692,786.40 = 195,416.20/x
  3. Step 3: Cross multiply
    461,792.80x = 692,786.40 × 195,416.20
  4. Step 4: Simplify right side
    461,792.80x = 135,381,685,699.68
  5. Step 5: Solve for x
    x = 135,381,685,699.68/461,792.80
  6. Step 6: Final answer
    x = 293,165.43

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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.