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Finding the Fourth Proportional to 531,434.46, 797,612.22 and 278,893.38

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Solution

The fourth proportional to 531,434.46, 797,612.22 and 278,893.38 is: 418,581.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,434.46 : 797,612.22 = 278,893.38 : x
  2. Step 2: Convert to fraction form
    531,434.46/797,612.22 = 278,893.38/x
  3. Step 3: Cross multiply
    531,434.46x = 797,612.22 × 278,893.38
  4. Step 4: Simplify right side
    531,434.46x = 222,448,767,965.10
  5. Step 5: Solve for x
    x = 222,448,767,965.10/531,434.46
  6. Step 6: Final answer
    x = 418,581.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.