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Finding the Fourth Proportional to 616,820.40, 925,295.40 and 195,998.40

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Solution

The fourth proportional to 616,820.40, 925,295.40 and 195,998.40 is: 294,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,820.40 : 925,295.40 = 195,998.40 : x
  2. Step 2: Convert to fraction form
    616,820.40/925,295.40 = 195,998.40/x
  3. Step 3: Cross multiply
    616,820.40x = 925,295.40 × 195,998.40
  4. Step 4: Simplify right side
    616,820.40x = 181,356,417,927.36
  5. Step 5: Solve for x
    x = 181,356,417,927.36/616,820.40
  6. Step 6: Final answer
    x = 294,018.19

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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.