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Finding the Fourth Proportional to 960,825.88, 1,325,940 and 525,245.12

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Solution

The fourth proportional to 960,825.88, 1,325,940 and 525,245.12 is: 724,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,825.88 : 1,325,940 = 525,245.12 : x
  2. Step 2: Convert to fraction form
    960,825.88/1,325,940 = 525,245.12/x
  3. Step 3: Cross multiply
    960,825.88x = 1,325,940 × 525,245.12
  4. Step 4: Simplify right side
    960,825.88x = 696,443,514,412.80
  5. Step 5: Solve for x
    x = 696,443,514,412.80/960,825.88
  6. Step 6: Final answer
    x = 724,838.42

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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.