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Finding the Fourth Proportional to 739,076.56, 1,107,487 and 384,205.84

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Solution

The fourth proportional to 739,076.56, 1,107,487 and 384,205.84 is: 575,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,076.56 : 1,107,487 = 384,205.84 : x
  2. Step 2: Convert to fraction form
    739,076.56/1,107,487 = 384,205.84/x
  3. Step 3: Cross multiply
    739,076.56x = 1,107,487 × 384,205.84
  4. Step 4: Simplify right side
    739,076.56x = 425,502,973,124.08
  5. Step 5: Solve for x
    x = 425,502,973,124.08/739,076.56
  6. Step 6: Final answer
    x = 575,722.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.