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Finding the Fourth Proportional to 399,959.76, 552,083.52 and 230,261.52

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Solution

The fourth proportional to 399,959.76, 552,083.52 and 230,261.52 is: 317,840.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,959.76 : 552,083.52 = 230,261.52 : x
  2. Step 2: Convert to fraction form
    399,959.76/552,083.52 = 230,261.52/x
  3. Step 3: Cross multiply
    399,959.76x = 552,083.52 × 230,261.52
  4. Step 4: Simplify right side
    399,959.76x = 127,123,590,482.15
  5. Step 5: Solve for x
    x = 127,123,590,482.15/399,959.76
  6. Step 6: Final answer
    x = 317,840.95

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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.