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Finding the Fourth Proportional to 363,816.40, 545,724.60 and 349,819.60

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Solution

The fourth proportional to 363,816.40, 545,724.60 and 349,819.60 is: 524,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,816.40 : 545,724.60 = 349,819.60 : x
  2. Step 2: Convert to fraction form
    363,816.40/545,724.60 = 349,819.60/x
  3. Step 3: Cross multiply
    363,816.40x = 545,724.60 × 349,819.60
  4. Step 4: Simplify right side
    363,816.40x = 190,905,161,282.16
  5. Step 5: Solve for x
    x = 190,905,161,282.16/363,816.40
  6. Step 6: Final answer
    x = 524,729.40

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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.