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Finding the Fourth Proportional to 325,703.60, 488,843.40 and 192,417.20

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Solution

The fourth proportional to 325,703.60, 488,843.40 and 192,417.20 is: 288,795.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,703.60 : 488,843.40 = 192,417.20 : x
  2. Step 2: Convert to fraction form
    325,703.60/488,843.40 = 192,417.20/x
  3. Step 3: Cross multiply
    325,703.60x = 488,843.40 × 192,417.20
  4. Step 4: Simplify right side
    325,703.60x = 94,061,878,266.48
  5. Step 5: Solve for x
    x = 94,061,878,266.48/325,703.60
  6. Step 6: Final answer
    x = 288,795.94

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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.