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Finding the Fourth Proportional to 611,111.43, 843,373.19 and 339,179.34

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Solution

The fourth proportional to 611,111.43, 843,373.19 and 339,179.34 is: 468,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,111.43 : 843,373.19 = 339,179.34 : x
  2. Step 2: Convert to fraction form
    611,111.43/843,373.19 = 339,179.34/x
  3. Step 3: Cross multiply
    611,111.43x = 843,373.19 × 339,179.34
  4. Step 4: Simplify right side
    611,111.43x = 286,054,760,262.00
  5. Step 5: Solve for x
    x = 286,054,760,262.00/611,111.43
  6. Step 6: Final answer
    x = 468,089.36

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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.