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Finding the Fourth Proportional to 386,281.85, 579,228.91 and 183,817.59

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Solution

The fourth proportional to 386,281.85, 579,228.91 and 183,817.59 is: 275,634.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,281.85 : 579,228.91 = 183,817.59 : x
  2. Step 2: Convert to fraction form
    386,281.85/579,228.91 = 183,817.59/x
  3. Step 3: Cross multiply
    386,281.85x = 579,228.91 × 183,817.59
  4. Step 4: Simplify right side
    386,281.85x = 106,472,462,294.53
  5. Step 5: Solve for x
    x = 106,472,462,294.53/386,281.85
  6. Step 6: Final answer
    x = 275,634.13

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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.