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Finding the Fourth Proportional to 531,303.14, 733,191.89 and 289,584.97

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Solution

The fourth proportional to 531,303.14, 733,191.89 and 289,584.97 is: 399,623.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,303.14 : 733,191.89 = 289,584.97 : x
  2. Step 2: Convert to fraction form
    531,303.14/733,191.89 = 289,584.97/x
  3. Step 3: Cross multiply
    531,303.14x = 733,191.89 × 289,584.97
  4. Step 4: Simplify right side
    531,303.14x = 212,321,348,188.99
  5. Step 5: Solve for x
    x = 212,321,348,188.99/531,303.14
  6. Step 6: Final answer
    x = 399,623.74

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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.