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Finding the Fourth Proportional to 545,898.75, 753,330.09 and 304,176.16

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Solution

The fourth proportional to 545,898.75, 753,330.09 and 304,176.16 is: 419,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,898.75 : 753,330.09 = 304,176.16 : x
  2. Step 2: Convert to fraction form
    545,898.75/753,330.09 = 304,176.16/x
  3. Step 3: Cross multiply
    545,898.75x = 753,330.09 × 304,176.16
  4. Step 4: Simplify right side
    545,898.75x = 229,145,053,988.65
  5. Step 5: Solve for x
    x = 229,145,053,988.65/545,898.75
  6. Step 6: Final answer
    x = 419,757.43

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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.