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Finding the Fourth Proportional to 893,224.80, 1,336,726.80 and 613,288.80

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Solution

The fourth proportional to 893,224.80, 1,336,726.80 and 613,288.80 is: 917,797.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,224.80 : 1,336,726.80 = 613,288.80 : x
  2. Step 2: Convert to fraction form
    893,224.80/1,336,726.80 = 613,288.80/x
  3. Step 3: Cross multiply
    893,224.80x = 1,336,726.80 × 613,288.80
  4. Step 4: Simplify right side
    893,224.80x = 819,799,575,099.84
  5. Step 5: Solve for x
    x = 819,799,575,099.84/893,224.80
  6. Step 6: Final answer
    x = 917,797.60

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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.