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Finding the Fourth Proportional to 543,705.66, 750,372.62 and 328,964.13

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Solution

The fourth proportional to 543,705.66, 750,372.62 and 328,964.13 is: 454,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,705.66 : 750,372.62 = 328,964.13 : x
  2. Step 2: Convert to fraction form
    543,705.66/750,372.62 = 328,964.13/x
  3. Step 3: Cross multiply
    543,705.66x = 750,372.62 × 328,964.13
  4. Step 4: Simplify right side
    543,705.66x = 246,845,674,469.30
  5. Step 5: Solve for x
    x = 246,845,674,469.30/543,705.66
  6. Step 6: Final answer
    x = 454,006.08

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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.