Home / 531,218.09-733,059.57-289,495.47

Finding the Fourth Proportional to 531,218.09, 733,059.57 and 289,495.47

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Solution

The fourth proportional to 531,218.09, 733,059.57 and 289,495.47 is: 399,492.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,218.09 : 733,059.57 = 289,495.47 : x
  2. Step 2: Convert to fraction form
    531,218.09/733,059.57 = 289,495.47/x
  3. Step 3: Cross multiply
    531,218.09x = 733,059.57 × 289,495.47
  4. Step 4: Simplify right side
    531,218.09x = 212,217,424,755.15
  5. Step 5: Solve for x
    x = 212,217,424,755.15/531,218.09
  6. Step 6: Final answer
    x = 399,492.09

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1.5x scale

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.