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Finding the Fourth Proportional to 532,828.78, 798,554.25 and 398,656.33

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Solution

The fourth proportional to 532,828.78, 798,554.25 and 398,656.33 is: 597,469.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,828.78 : 798,554.25 = 398,656.33 : x
  2. Step 2: Convert to fraction form
    532,828.78/798,554.25 = 398,656.33/x
  3. Step 3: Cross multiply
    532,828.78x = 798,554.25 × 398,656.33
  4. Step 4: Simplify right side
    532,828.78x = 318,348,704,614.52
  5. Step 5: Solve for x
    x = 318,348,704,614.52/532,828.78
  6. Step 6: Final answer
    x = 597,469.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.