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Finding the Fourth Proportional to 568,483.06, 784,486.06 and 313,828.78

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Solution

The fourth proportional to 568,483.06, 784,486.06 and 313,828.78 is: 433,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,483.06 : 784,486.06 = 313,828.78 : x
  2. Step 2: Convert to fraction form
    568,483.06/784,486.06 = 313,828.78/x
  3. Step 3: Cross multiply
    568,483.06x = 784,486.06 × 313,828.78
  4. Step 4: Simplify right side
    568,483.06x = 246,194,303,136.81
  5. Step 5: Solve for x
    x = 246,194,303,136.81/568,483.06
  6. Step 6: Final answer
    x = 433,072.36

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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.