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Finding the Fourth Proportional to 363,195.45, 544,793.18 and 316,539.45

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Solution

The fourth proportional to 363,195.45, 544,793.18 and 316,539.45 is: 474,809.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,195.45 : 544,793.18 = 316,539.45 : x
  2. Step 2: Convert to fraction form
    363,195.45/544,793.18 = 316,539.45/x
  3. Step 3: Cross multiply
    363,195.45x = 544,793.18 × 316,539.45
  4. Step 4: Simplify right side
    363,195.45x = 172,448,531,978.25
  5. Step 5: Solve for x
    x = 172,448,531,978.25/363,195.45
  6. Step 6: Final answer
    x = 474,809.18

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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.