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Finding the Fourth Proportional to 519,924.68, 717,670.50 and 368,759.24

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Solution

The fourth proportional to 519,924.68, 717,670.50 and 368,759.24 is: 509,011.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,924.68 : 717,670.50 = 368,759.24 : x
  2. Step 2: Convert to fraction form
    519,924.68/717,670.50 = 368,759.24/x
  3. Step 3: Cross multiply
    519,924.68x = 717,670.50 × 368,759.24
  4. Step 4: Simplify right side
    519,924.68x = 264,647,628,150.42
  5. Step 5: Solve for x
    x = 264,647,628,150.42/519,924.68
  6. Step 6: Final answer
    x = 509,011.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.