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Finding the Fourth Proportional to 531,768.15, 733,842.34 and 290,055.91

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Solution

The fourth proportional to 531,768.15, 733,842.34 and 290,055.91 is: 400,278.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,768.15 : 733,842.34 = 290,055.91 : x
  2. Step 2: Convert to fraction form
    531,768.15/733,842.34 = 290,055.91/x
  3. Step 3: Cross multiply
    531,768.15x = 733,842.34 × 290,055.91
  4. Step 4: Simplify right side
    531,768.15x = 212,855,307,725.23
  5. Step 5: Solve for x
    x = 212,855,307,725.23/531,768.15
  6. Step 6: Final answer
    x = 400,278.41

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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.