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Finding the Fourth Proportional to 551,901.36, 761,488.92 and 336,963.12

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Solution

The fourth proportional to 551,901.36, 761,488.92 and 336,963.12 is: 464,926.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,901.36 : 761,488.92 = 336,963.12 : x
  2. Step 2: Convert to fraction form
    551,901.36/761,488.92 = 336,963.12/x
  3. Step 3: Cross multiply
    551,901.36x = 761,488.92 × 336,963.12
  4. Step 4: Simplify right side
    551,901.36x = 256,593,682,328.63
  5. Step 5: Solve for x
    x = 256,593,682,328.63/551,901.36
  6. Step 6: Final answer
    x = 464,926.71

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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.