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Finding the Fourth Proportional to 560,725.47, 773,800.92 and 306,076.66

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Solution

The fourth proportional to 560,725.47, 773,800.92 and 306,076.66 is: 422,385.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,725.47 : 773,800.92 = 306,076.66 : x
  2. Step 2: Convert to fraction form
    560,725.47/773,800.92 = 306,076.66/x
  3. Step 3: Cross multiply
    560,725.47x = 773,800.92 × 306,076.66
  4. Step 4: Simplify right side
    560,725.47x = 236,842,399,164.03
  5. Step 5: Solve for x
    x = 236,842,399,164.03/560,725.47
  6. Step 6: Final answer
    x = 422,385.66

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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.