Home / 813,869.52-1,122,910.86-641,252.34

Finding the Fourth Proportional to 813,869.52, 1,122,910.86 and 641,252.34

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Solution

The fourth proportional to 813,869.52, 1,122,910.86 and 641,252.34 is: 884,747.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,869.52 : 1,122,910.86 = 641,252.34 : x
  2. Step 2: Convert to fraction form
    813,869.52/1,122,910.86 = 641,252.34/x
  3. Step 3: Cross multiply
    813,869.52x = 1,122,910.86 × 641,252.34
  4. Step 4: Simplify right side
    813,869.52x = 720,069,216,586.41
  5. Step 5: Solve for x
    x = 720,069,216,586.41/813,869.52
  6. Step 6: Final answer
    x = 884,747.74

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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.