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Finding the Fourth Proportional to 616,804.48, 925,009.80 and 195,981.94

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Solution

The fourth proportional to 616,804.48, 925,009.80 and 195,981.94 is: 293,910.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,804.48 : 925,009.80 = 195,981.94 : x
  2. Step 2: Convert to fraction form
    616,804.48/925,009.80 = 195,981.94/x
  3. Step 3: Cross multiply
    616,804.48x = 925,009.80 × 195,981.94
  4. Step 4: Simplify right side
    616,804.48x = 181,285,215,123.01
  5. Step 5: Solve for x
    x = 181,285,215,123.01/616,804.48
  6. Step 6: Final answer
    x = 293,910.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.