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Finding the Fourth Proportional to 554,609.83, 765,361.62 and 299,961.01

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Solution

The fourth proportional to 554,609.83, 765,361.62 and 299,961.01 is: 413,946.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,609.83 : 765,361.62 = 299,961.01 : x
  2. Step 2: Convert to fraction form
    554,609.83/765,361.62 = 299,961.01/x
  3. Step 3: Cross multiply
    554,609.83x = 765,361.62 × 299,961.01
  4. Step 4: Simplify right side
    554,609.83x = 229,578,644,550.44
  5. Step 5: Solve for x
    x = 229,578,644,550.44/554,609.83
  6. Step 6: Final answer
    x = 413,946.22

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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.