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Finding the Fourth Proportional to 531,066.92, 732,863.12 and 289,351.26

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Solution

The fourth proportional to 531,066.92, 732,863.12 and 289,351.26 is: 399,299.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,066.92 : 732,863.12 = 289,351.26 : x
  2. Step 2: Convert to fraction form
    531,066.92/732,863.12 = 289,351.26/x
  3. Step 3: Cross multiply
    531,066.92x = 732,863.12 × 289,351.26
  4. Step 4: Simplify right side
    531,066.92x = 212,054,865,732.78
  5. Step 5: Solve for x
    x = 212,054,865,732.78/531,066.92
  6. Step 6: Final answer
    x = 399,299.71

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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.