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Finding the Fourth Proportional to 586,138.40, 879,198.06 and 186,773.78

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Solution

The fourth proportional to 586,138.40, 879,198.06 and 186,773.78 is: 280,157.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,138.40 : 879,198.06 = 186,773.78 : x
  2. Step 2: Convert to fraction form
    586,138.40/879,198.06 = 186,773.78/x
  3. Step 3: Cross multiply
    586,138.40x = 879,198.06 × 186,773.78
  4. Step 4: Simplify right side
    586,138.40x = 164,211,145,034.87
  5. Step 5: Solve for x
    x = 164,211,145,034.87/586,138.40
  6. Step 6: Final answer
    x = 280,157.63

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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.