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Finding the Fourth Proportional to 972,896.15, 1,339,624.36 and 881,658.29

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Solution

The fourth proportional to 972,896.15, 1,339,624.36 and 881,658.29 is: 1,213,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,896.15 : 1,339,624.36 = 881,658.29 : x
  2. Step 2: Convert to fraction form
    972,896.15/1,339,624.36 = 881,658.29/x
  3. Step 3: Cross multiply
    972,896.15x = 1,339,624.36 × 881,658.29
  4. Step 4: Simplify right side
    972,896.15x = 1,181,090,922,479.94
  5. Step 5: Solve for x
    x = 1,181,090,922,479.94/972,896.15
  6. Step 6: Final answer
    x = 1,213,994.86

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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.