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Finding the Fourth Proportional to 562,789.85, 776,649.15 and 304,665.53

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Solution

The fourth proportional to 562,789.85, 776,649.15 and 304,665.53 is: 420,437.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,789.85 : 776,649.15 = 304,665.53 : x
  2. Step 2: Convert to fraction form
    562,789.85/776,649.15 = 304,665.53/x
  3. Step 3: Cross multiply
    562,789.85x = 776,649.15 × 304,665.53
  4. Step 4: Simplify right side
    562,789.85x = 236,618,221,025.55
  5. Step 5: Solve for x
    x = 236,618,221,025.55/562,789.85
  6. Step 6: Final answer
    x = 420,437.97

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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.