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Finding the Fourth Proportional to 833,227.20, 1,242,524.16 and 825,649.20

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Solution

The fourth proportional to 833,227.20, 1,242,524.16 and 825,649.20 is: 1,231,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,227.20 : 1,242,524.16 = 825,649.20 : x
  2. Step 2: Convert to fraction form
    833,227.20/1,242,524.16 = 825,649.20/x
  3. Step 3: Cross multiply
    833,227.20x = 1,242,524.16 × 825,649.20
  4. Step 4: Simplify right side
    833,227.20x = 1,025,889,078,684.67
  5. Step 5: Solve for x
    x = 1,025,889,078,684.67/833,227.20
  6. Step 6: Final answer
    x = 1,231,223.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.