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Finding the Fourth Proportional to 568,812.72, 784,894.41 and 314,148.72

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Solution

The fourth proportional to 568,812.72, 784,894.41 and 314,148.72 is: 433,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,812.72 : 784,894.41 = 314,148.72 : x
  2. Step 2: Convert to fraction form
    568,812.72/784,894.41 = 314,148.72/x
  3. Step 3: Cross multiply
    568,812.72x = 784,894.41 × 314,148.72
  4. Step 4: Simplify right side
    568,812.72x = 246,573,574,236.66
  5. Step 5: Solve for x
    x = 246,573,574,236.66/568,812.72
  6. Step 6: Final answer
    x = 433,488.15

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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.