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Finding the Fourth Proportional to 363,881.20, 545,821.80 and 325,827.40

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Solution

The fourth proportional to 363,881.20, 545,821.80 and 325,827.40 is: 488,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,881.20 : 545,821.80 = 325,827.40 : x
  2. Step 2: Convert to fraction form
    363,881.20/545,821.80 = 325,827.40/x
  3. Step 3: Cross multiply
    363,881.20x = 545,821.80 × 325,827.40
  4. Step 4: Simplify right side
    363,881.20x = 177,843,697,957.32
  5. Step 5: Solve for x
    x = 177,843,697,957.32/363,881.20
  6. Step 6: Final answer
    x = 488,741.10

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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.