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Finding the Fourth Proportional to 363,872.90, 545,809.35 and 306,136.10

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Solution

The fourth proportional to 363,872.90, 545,809.35 and 306,136.10 is: 459,204.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,872.90 : 545,809.35 = 306,136.10 : x
  2. Step 2: Convert to fraction form
    363,872.90/545,809.35 = 306,136.10/x
  3. Step 3: Cross multiply
    363,872.90x = 545,809.35 × 306,136.10
  4. Step 4: Simplify right side
    363,872.90x = 167,091,945,752.54
  5. Step 5: Solve for x
    x = 167,091,945,752.54/363,872.90
  6. Step 6: Final answer
    x = 459,204.15

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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.