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Finding the Fourth Proportional to 525,979.56, 725,674.50 and 299,464.68

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Solution

The fourth proportional to 525,979.56, 725,674.50 and 299,464.68 is: 413,160.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,979.56 : 725,674.50 = 299,464.68 : x
  2. Step 2: Convert to fraction form
    525,979.56/725,674.50 = 299,464.68/x
  3. Step 3: Cross multiply
    525,979.56x = 725,674.50 × 299,464.68
  4. Step 4: Simplify right side
    525,979.56x = 217,313,881,926.66
  5. Step 5: Solve for x
    x = 217,313,881,926.66/525,979.56
  6. Step 6: Final answer
    x = 413,160.32

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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.