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Finding the Fourth Proportional to 611,127.92, 843,350.43 and 339,188.82

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Solution

The fourth proportional to 611,127.92, 843,350.43 and 339,188.82 is: 468,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,127.92 : 843,350.43 = 339,188.82 : x
  2. Step 2: Convert to fraction form
    611,127.92/843,350.43 = 339,188.82/x
  3. Step 3: Cross multiply
    611,127.92x = 843,350.43 × 339,188.82
  4. Step 4: Simplify right side
    611,127.92x = 286,055,037,198.19
  5. Step 5: Solve for x
    x = 286,055,037,198.19/611,127.92
  6. Step 6: Final answer
    x = 468,077.19

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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.