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Finding the Fourth Proportional to 531,220.68, 733,063.14 and 289,498.14

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Solution

The fourth proportional to 531,220.68, 733,063.14 and 289,498.14 is: 399,495.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,220.68 : 733,063.14 = 289,498.14 : x
  2. Step 2: Convert to fraction form
    531,220.68/733,063.14 = 289,498.14/x
  3. Step 3: Cross multiply
    531,220.68x = 733,063.14 × 289,498.14
  4. Step 4: Simplify right side
    531,220.68x = 212,220,415,532.56
  5. Step 5: Solve for x
    x = 212,220,415,532.56/531,220.68
  6. Step 6: Final answer
    x = 399,495.77

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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.