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Finding the Fourth Proportional to 886,470, 1,222,901.68 and 580,411.48

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Solution

The fourth proportional to 886,470, 1,222,901.68 and 580,411.48 is: 800,688.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,470 : 1,222,901.68 = 580,411.48 : x
  2. Step 2: Convert to fraction form
    886,470/1,222,901.68 = 580,411.48/x
  3. Step 3: Cross multiply
    886,470x = 1,222,901.68 × 580,411.48
  4. Step 4: Simplify right side
    886,470x = 709,786,173,983.29
  5. Step 5: Solve for x
    x = 709,786,173,983.29/886,470
  6. Step 6: Final answer
    x = 800,688.32

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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.