Home / 531,260.98-733,121.40-289,538.76

Finding the Fourth Proportional to 531,260.98, 733,121.40 and 289,538.76

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Solution

The fourth proportional to 531,260.98, 733,121.40 and 289,538.76 is: 399,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,260.98 : 733,121.40 = 289,538.76 : x
  2. Step 2: Convert to fraction form
    531,260.98/733,121.40 = 289,538.76/x
  3. Step 3: Cross multiply
    531,260.98x = 733,121.40 × 289,538.76
  4. Step 4: Simplify right side
    531,260.98x = 212,267,061,085.46
  5. Step 5: Solve for x
    x = 212,267,061,085.46/531,260.98
  6. Step 6: Final answer
    x = 399,553.27

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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.