Home / 1,392,969.72-1,922,573.92-903,545.77

Finding the Fourth Proportional to 1,392,969.72, 1,922,573.92 and 903,545.77

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Solution

The fourth proportional to 1,392,969.72, 1,922,573.92 and 903,545.77 is: 1,247,072.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,969.72 : 1,922,573.92 = 903,545.77 : x
  2. Step 2: Convert to fraction form
    1,392,969.72/1,922,573.92 = 903,545.77/x
  3. Step 3: Cross multiply
    1,392,969.72x = 1,922,573.92 × 903,545.77
  4. Step 4: Simplify right side
    1,392,969.72x = 1,737,133,532,928.32
  5. Step 5: Solve for x
    x = 1,737,133,532,928.32/1,392,969.72
  6. Step 6: Final answer
    x = 1,247,072.00

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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.