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Finding the Fourth Proportional to 403,081.53, 604,726.18 and 289,361.17

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Solution

The fourth proportional to 403,081.53, 604,726.18 and 289,361.17 is: 434,116.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,081.53 : 604,726.18 = 289,361.17 : x
  2. Step 2: Convert to fraction form
    403,081.53/604,726.18 = 289,361.17/x
  3. Step 3: Cross multiply
    403,081.53x = 604,726.18 × 289,361.17
  4. Step 4: Simplify right side
    403,081.53x = 174,984,275,006.94
  5. Step 5: Solve for x
    x = 174,984,275,006.94/403,081.53
  6. Step 6: Final answer
    x = 434,116.34

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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.