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Finding the Fourth Proportional to 354,820.10, 489,661.00 and 193,690.04

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Solution

The fourth proportional to 354,820.10, 489,661.00 and 193,690.04 is: 267,297.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,820.10 : 489,661.00 = 193,690.04 : x
  2. Step 2: Convert to fraction form
    354,820.10/489,661.00 = 193,690.04/x
  3. Step 3: Cross multiply
    354,820.10x = 489,661.00 × 193,690.04
  4. Step 4: Simplify right side
    354,820.10x = 94,842,455,743.91
  5. Step 5: Solve for x
    x = 94,842,455,743.91/354,820.10
  6. Step 6: Final answer
    x = 267,297.31

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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.