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Finding the Fourth Proportional to 611,123.93, 843,344.83 and 339,194.17

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Solution

The fourth proportional to 611,123.93, 843,344.83 and 339,194.17 is: 468,084.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,123.93 : 843,344.83 = 339,194.17 : x
  2. Step 2: Convert to fraction form
    611,123.93/843,344.83 = 339,194.17/x
  3. Step 3: Cross multiply
    611,123.93x = 843,344.83 × 339,194.17
  4. Step 4: Simplify right side
    611,123.93x = 286,057,646,679.29
  5. Step 5: Solve for x
    x = 286,057,646,679.29/611,123.93
  6. Step 6: Final answer
    x = 468,084.52

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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.