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Finding the Fourth Proportional to 559,602.56, 839,686.12 and 275,281.20

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Solution

The fourth proportional to 559,602.56, 839,686.12 and 275,281.20 is: 413,060.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,602.56 : 839,686.12 = 275,281.20 : x
  2. Step 2: Convert to fraction form
    559,602.56/839,686.12 = 275,281.20/x
  3. Step 3: Cross multiply
    559,602.56x = 839,686.12 × 275,281.20
  4. Step 4: Simplify right side
    559,602.56x = 231,149,802,736.94
  5. Step 5: Solve for x
    x = 231,149,802,736.94/559,602.56
  6. Step 6: Final answer
    x = 413,060.66

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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.