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Finding the Fourth Proportional to 611,107.38, 843,337.17 and 339,192.74

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Solution

The fourth proportional to 611,107.38, 843,337.17 and 339,192.74 is: 468,090.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,107.38 : 843,337.17 = 339,192.74 : x
  2. Step 2: Convert to fraction form
    611,107.38/843,337.17 = 339,192.74/x
  3. Step 3: Cross multiply
    611,107.38x = 843,337.17 × 339,192.74
  4. Step 4: Simplify right side
    611,107.38x = 286,053,845,436.15
  5. Step 5: Solve for x
    x = 286,053,845,436.15/611,107.38
  6. Step 6: Final answer
    x = 468,090.97

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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.