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Finding the Fourth Proportional to 568,457.31, 784,450.53 and 313,803.03

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Solution

The fourth proportional to 568,457.31, 784,450.53 and 313,803.03 is: 433,036.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,457.31 : 784,450.53 = 313,803.03 : x
  2. Step 2: Convert to fraction form
    568,457.31/784,450.53 = 313,803.03/x
  3. Step 3: Cross multiply
    568,457.31x = 784,450.53 × 313,803.03
  4. Step 4: Simplify right side
    568,457.31x = 246,162,953,199.11
  5. Step 5: Solve for x
    x = 246,162,953,199.11/568,457.31
  6. Step 6: Final answer
    x = 433,036.83

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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.