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Finding the Fourth Proportional to 554,571.75, 765,304.65 and 299,922.93

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Solution

The fourth proportional to 554,571.75, 765,304.65 and 299,922.93 is: 413,891.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,571.75 : 765,304.65 = 299,922.93 : x
  2. Step 2: Convert to fraction form
    554,571.75/765,304.65 = 299,922.93/x
  3. Step 3: Cross multiply
    554,571.75x = 765,304.65 × 299,922.93
  4. Step 4: Simplify right side
    554,571.75x = 229,532,412,970.63
  5. Step 5: Solve for x
    x = 229,532,412,970.63/554,571.75
  6. Step 6: Final answer
    x = 413,891.28

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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.