Home / 531,176.70-733,023.87-289,459.20

Finding the Fourth Proportional to 531,176.70, 733,023.87 and 289,459.20

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Solution

The fourth proportional to 531,176.70, 733,023.87 and 289,459.20 is: 399,453.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,176.70 : 733,023.87 = 289,459.20 : x
  2. Step 2: Convert to fraction form
    531,176.70/733,023.87 = 289,459.20/x
  3. Step 3: Cross multiply
    531,176.70x = 733,023.87 × 289,459.20
  4. Step 4: Simplify right side
    531,176.70x = 212,180,502,991.10
  5. Step 5: Solve for x
    x = 212,180,502,991.10/531,176.70
  6. Step 6: Final answer
    x = 399,453.71

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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.