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Finding the Fourth Proportional to 568,368.34, 784,348.38 and 313,719.60

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Solution

The fourth proportional to 568,368.34, 784,348.38 and 313,719.60 is: 432,933.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,368.34 : 784,348.38 = 313,719.60 : x
  2. Step 2: Convert to fraction form
    568,368.34/784,348.38 = 313,719.60/x
  3. Step 3: Cross multiply
    568,368.34x = 784,348.38 × 313,719.60
  4. Step 4: Simplify right side
    568,368.34x = 246,065,460,034.25
  5. Step 5: Solve for x
    x = 246,065,460,034.25/568,368.34
  6. Step 6: Final answer
    x = 432,933.09

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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.