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Finding the Fourth Proportional to 882,012.80, 1,323,019.20 and 682,947.20

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Solution

The fourth proportional to 882,012.80, 1,323,019.20 and 682,947.20 is: 1,024,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,012.80 : 1,323,019.20 = 682,947.20 : x
  2. Step 2: Convert to fraction form
    882,012.80/1,323,019.20 = 682,947.20/x
  3. Step 3: Cross multiply
    882,012.80x = 1,323,019.20 × 682,947.20
  4. Step 4: Simplify right side
    882,012.80x = 903,552,258,186.24
  5. Step 5: Solve for x
    x = 903,552,258,186.24/882,012.80
  6. Step 6: Final answer
    x = 1,024,420.80

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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.