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Finding the Fourth Proportional to 562,338.40, 775,474.02 and 515,660.97

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Solution

The fourth proportional to 562,338.40, 775,474.02 and 515,660.97 is: 711,105.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,338.40 : 775,474.02 = 515,660.97 : x
  2. Step 2: Convert to fraction form
    562,338.40/775,474.02 = 515,660.97/x
  3. Step 3: Cross multiply
    562,338.40x = 775,474.02 × 515,660.97
  4. Step 4: Simplify right side
    562,338.40x = 399,881,685,363.00
  5. Step 5: Solve for x
    x = 399,881,685,363.00/562,338.40
  6. Step 6: Final answer
    x = 711,105.07

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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.