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Finding the Fourth Proportional to 720,119.62, 1,080,310.65 and 246,852.82

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Solution

The fourth proportional to 720,119.62, 1,080,310.65 and 246,852.82 is: 370,324.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,119.62 : 1,080,310.65 = 246,852.82 : x
  2. Step 2: Convert to fraction form
    720,119.62/1,080,310.65 = 246,852.82/x
  3. Step 3: Cross multiply
    720,119.62x = 1,080,310.65 × 246,852.82
  4. Step 4: Simplify right side
    720,119.62x = 266,677,730,428.53
  5. Step 5: Solve for x
    x = 266,677,730,428.53/720,119.62
  6. Step 6: Final answer
    x = 370,324.21

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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.