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Finding the Fourth Proportional to 611,760.47, 843,889.39 and 568,461.65

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Solution

The fourth proportional to 611,760.47, 843,889.39 and 568,461.65 is: 784,161.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,760.47 : 843,889.39 = 568,461.65 : x
  2. Step 2: Convert to fraction form
    611,760.47/843,889.39 = 568,461.65/x
  3. Step 3: Cross multiply
    611,760.47x = 843,889.39 × 568,461.65
  4. Step 4: Simplify right side
    611,760.47x = 479,718,749,416.29
  5. Step 5: Solve for x
    x = 479,718,749,416.29/611,760.47
  6. Step 6: Final answer
    x = 784,161.08

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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.