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Finding the Fourth Proportional to 547,488.96, 754,458.16 and 418,573.12

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Solution

The fourth proportional to 547,488.96, 754,458.16 and 418,573.12 is: 576,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,488.96 : 754,458.16 = 418,573.12 : x
  2. Step 2: Convert to fraction form
    547,488.96/754,458.16 = 418,573.12/x
  3. Step 3: Cross multiply
    547,488.96x = 754,458.16 × 418,573.12
  4. Step 4: Simplify right side
    547,488.96x = 315,795,905,940.66
  5. Step 5: Solve for x
    x = 315,795,905,940.66/547,488.96
  6. Step 6: Final answer
    x = 576,807.81

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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.