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Finding the Fourth Proportional to 539,343.05, 744,295.59 and 297,632.61

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Solution

The fourth proportional to 539,343.05, 744,295.59 and 297,632.61 is: 410,734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,343.05 : 744,295.59 = 297,632.61 : x
  2. Step 2: Convert to fraction form
    539,343.05/744,295.59 = 297,632.61/x
  3. Step 3: Cross multiply
    539,343.05x = 744,295.59 × 297,632.61
  4. Step 4: Simplify right side
    539,343.05x = 221,526,639,063.19
  5. Step 5: Solve for x
    x = 221,526,639,063.19/539,343.05
  6. Step 6: Final answer
    x = 410,734.21

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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.