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Finding the Fourth Proportional to 1,259,607, 1,738,878.22 and 872,715.77

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Solution

The fourth proportional to 1,259,607, 1,738,878.22 and 872,715.77 is: 1,204,777.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,607 : 1,738,878.22 = 872,715.77 : x
  2. Step 2: Convert to fraction form
    1,259,607/1,738,878.22 = 872,715.77/x
  3. Step 3: Cross multiply
    1,259,607x = 1,738,878.22 × 872,715.77
  4. Step 4: Simplify right side
    1,259,607x = 1,517,546,444,703.53
  5. Step 5: Solve for x
    x = 1,517,546,444,703.53/1,259,607
  6. Step 6: Final answer
    x = 1,204,777.72

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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.