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Finding the Fourth Proportional to 568,466.88, 784,486.80 and 313,820.16

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Solution

The fourth proportional to 568,466.88, 784,486.80 and 313,820.16 is: 433,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,466.88 : 784,486.80 = 313,820.16 : x
  2. Step 2: Convert to fraction form
    568,466.88/784,486.80 = 313,820.16/x
  3. Step 3: Cross multiply
    568,466.88x = 784,486.80 × 313,820.16
  4. Step 4: Simplify right side
    568,466.88x = 246,187,773,093.89
  5. Step 5: Solve for x
    x = 246,187,773,093.89/568,466.88
  6. Step 6: Final answer
    x = 433,073.20

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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.