Home / 399,918.63-551,894.30-238,787.76

Finding the Fourth Proportional to 399,918.63, 551,894.30 and 238,787.76

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Solution

The fourth proportional to 399,918.63, 551,894.30 and 238,787.76 is: 329,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,918.63 : 551,894.30 = 238,787.76 : x
  2. Step 2: Convert to fraction form
    399,918.63/551,894.30 = 238,787.76/x
  3. Step 3: Cross multiply
    399,918.63x = 551,894.30 × 238,787.76
  4. Step 4: Simplify right side
    399,918.63x = 131,785,605,424.89
  5. Step 5: Solve for x
    x = 131,785,605,424.89/399,918.63
  6. Step 6: Final answer
    x = 329,531.05

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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.