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Finding the Fourth Proportional to 519,820.88, 779,730.78 and 195,669.51

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Solution

The fourth proportional to 519,820.88, 779,730.78 and 195,669.51 is: 293,504.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,820.88 : 779,730.78 = 195,669.51 : x
  2. Step 2: Convert to fraction form
    519,820.88/779,730.78 = 195,669.51/x
  3. Step 3: Cross multiply
    519,820.88x = 779,730.78 × 195,669.51
  4. Step 4: Simplify right side
    519,820.88x = 152,569,539,654.52
  5. Step 5: Solve for x
    x = 152,569,539,654.52/519,820.88
  6. Step 6: Final answer
    x = 293,504.06

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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.