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Finding the Fourth Proportional to 568,391.98, 784,381.59 and 313,743.16

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Solution

The fourth proportional to 568,391.98, 784,381.59 and 313,743.16 is: 432,965.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,391.98 : 784,381.59 = 313,743.16 : x
  2. Step 2: Convert to fraction form
    568,391.98/784,381.59 = 313,743.16/x
  3. Step 3: Cross multiply
    568,391.98x = 784,381.59 × 313,743.16
  4. Step 4: Simplify right side
    568,391.98x = 246,094,357,123.71
  5. Step 5: Solve for x
    x = 246,094,357,123.71/568,391.98
  6. Step 6: Final answer
    x = 432,965.92

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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.