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Finding the Fourth Proportional to 554,576.57, 765,316.18 and 299,927.76

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Solution

The fourth proportional to 554,576.57, 765,316.18 and 299,927.76 is: 413,900.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,576.57 : 765,316.18 = 299,927.76 : x
  2. Step 2: Convert to fraction form
    554,576.57/765,316.18 = 299,927.76/x
  3. Step 3: Cross multiply
    554,576.57x = 765,316.18 × 299,927.76
  4. Step 4: Simplify right side
    554,576.57x = 229,539,568,525.49
  5. Step 5: Solve for x
    x = 229,539,568,525.49/554,576.57
  6. Step 6: Final answer
    x = 413,900.58

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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.