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Finding the Fourth Proportional to 493,566.91, 680,775.92 and 340,666.45

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Solution

The fourth proportional to 493,566.91, 680,775.92 and 340,666.45 is: 469,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,566.91 : 680,775.92 = 340,666.45 : x
  2. Step 2: Convert to fraction form
    493,566.91/680,775.92 = 340,666.45/x
  3. Step 3: Cross multiply
    493,566.91x = 680,775.92 × 340,666.45
  4. Step 4: Simplify right side
    493,566.91x = 231,917,514,208.55
  5. Step 5: Solve for x
    x = 231,917,514,208.55/493,566.91
  6. Step 6: Final answer
    x = 469,880.60

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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.