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Finding the Fourth Proportional to 575,595.15, 862,900.38 and 220,863.75

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Solution

The fourth proportional to 575,595.15, 862,900.38 and 220,863.75 is: 331,106.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,595.15 : 862,900.38 = 220,863.75 : x
  2. Step 2: Convert to fraction form
    575,595.15/862,900.38 = 220,863.75/x
  3. Step 3: Cross multiply
    575,595.15x = 862,900.38 × 220,863.75
  4. Step 4: Simplify right side
    575,595.15x = 190,583,413,803.23
  5. Step 5: Solve for x
    x = 190,583,413,803.23/575,595.15
  6. Step 6: Final answer
    x = 331,106.71

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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.