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Finding the Fourth Proportional to 554,510.25, 765,224.46 and 299,861.43

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Solution

The fourth proportional to 554,510.25, 765,224.46 and 299,861.43 is: 413,808.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,510.25 : 765,224.46 = 299,861.43 : x
  2. Step 2: Convert to fraction form
    554,510.25/765,224.46 = 299,861.43/x
  3. Step 3: Cross multiply
    554,510.25x = 765,224.46 × 299,861.43
  4. Step 4: Simplify right side
    554,510.25x = 229,461,300,846.58
  5. Step 5: Solve for x
    x = 229,461,300,846.58/554,510.25
  6. Step 6: Final answer
    x = 413,808.94

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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.