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Finding the Fourth Proportional to 539,299.77, 744,232.81 and 297,582.15

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Solution

The fourth proportional to 539,299.77, 744,232.81 and 297,582.15 is: 410,662.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,299.77 : 744,232.81 = 297,582.15 : x
  2. Step 2: Convert to fraction form
    539,299.77/744,232.81 = 297,582.15/x
  3. Step 3: Cross multiply
    539,299.77x = 744,232.81 × 297,582.15
  4. Step 4: Simplify right side
    539,299.77x = 221,470,398,956.39
  5. Step 5: Solve for x
    x = 221,470,398,956.39/539,299.77
  6. Step 6: Final answer
    x = 410,662.88

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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.