Home / 399,895.49-551,839.01-236,657.81

Finding the Fourth Proportional to 399,895.49, 551,839.01 and 236,657.81

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Solution

The fourth proportional to 399,895.49, 551,839.01 and 236,657.81 is: 326,577.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,895.49 : 551,839.01 = 236,657.81 : x
  2. Step 2: Convert to fraction form
    399,895.49/551,839.01 = 236,657.81/x
  3. Step 3: Cross multiply
    399,895.49x = 551,839.01 × 236,657.81
  4. Step 4: Simplify right side
    399,895.49x = 130,597,009,411.62
  5. Step 5: Solve for x
    x = 130,597,009,411.62/399,895.49
  6. Step 6: Final answer
    x = 326,577.85

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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.