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Finding the Fourth Proportional to 531,778.91, 733,857.20 and 290,066.67

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Solution

The fourth proportional to 531,778.91, 733,857.20 and 290,066.67 is: 400,293.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,778.91 : 733,857.20 = 290,066.67 : x
  2. Step 2: Convert to fraction form
    531,778.91/733,857.20 = 290,066.67/x
  3. Step 3: Cross multiply
    531,778.91x = 733,857.20 × 290,066.67
  4. Step 4: Simplify right side
    531,778.91x = 212,867,512,809.19
  5. Step 5: Solve for x
    x = 212,867,512,809.19/531,778.91
  6. Step 6: Final answer
    x = 400,293.26

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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.