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Finding the Fourth Proportional to 568,386.90, 784,505.52 and 374,829.44

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Solution

The fourth proportional to 568,386.90, 784,505.52 and 374,829.44 is: 517,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,386.90 : 784,505.52 = 374,829.44 : x
  2. Step 2: Convert to fraction form
    568,386.90/784,505.52 = 374,829.44/x
  3. Step 3: Cross multiply
    568,386.90x = 784,505.52 × 374,829.44
  4. Step 4: Simplify right side
    568,386.90x = 294,055,760,815.98
  5. Step 5: Solve for x
    x = 294,055,760,815.98/568,386.90
  6. Step 6: Final answer
    x = 517,351.40

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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.