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Finding the Fourth Proportional to 555,104.69, 766,063.04 and 340,203.23

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Solution

The fourth proportional to 555,104.69, 766,063.04 and 340,203.23 is: 469,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,104.69 : 766,063.04 = 340,203.23 : x
  2. Step 2: Convert to fraction form
    555,104.69/766,063.04 = 340,203.23/x
  3. Step 3: Cross multiply
    555,104.69x = 766,063.04 × 340,203.23
  4. Step 4: Simplify right side
    555,104.69x = 260,617,115,060.29
  5. Step 5: Solve for x
    x = 260,617,115,060.29/555,104.69
  6. Step 6: Final answer
    x = 469,491.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.