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Finding the Fourth Proportional to 439,818.66, 659,729.62 and 187,063.02

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Solution

The fourth proportional to 439,818.66, 659,729.62 and 187,063.02 is: 280,595.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,818.66 : 659,729.62 = 187,063.02 : x
  2. Step 2: Convert to fraction form
    439,818.66/659,729.62 = 187,063.02/x
  3. Step 3: Cross multiply
    439,818.66x = 659,729.62 × 187,063.02
  4. Step 4: Simplify right side
    439,818.66x = 123,411,015,100.65
  5. Step 5: Solve for x
    x = 123,411,015,100.65/439,818.66
  6. Step 6: Final answer
    x = 280,595.22

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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.