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Finding the Fourth Proportional to 515,718.87, 773,577.62 and 195,870.12

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Solution

The fourth proportional to 515,718.87, 773,577.62 and 195,870.12 is: 293,804.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,718.87 : 773,577.62 = 195,870.12 : x
  2. Step 2: Convert to fraction form
    515,718.87/773,577.62 = 195,870.12/x
  3. Step 3: Cross multiply
    515,718.87x = 773,577.62 × 195,870.12
  4. Step 4: Simplify right side
    515,718.87x = 151,520,740,279.36
  5. Step 5: Solve for x
    x = 151,520,740,279.36/515,718.87
  6. Step 6: Final answer
    x = 293,804.92

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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.