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Finding the Fourth Proportional to 611,699.61, 844,118.10 and 339,786.27

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Solution

The fourth proportional to 611,699.61, 844,118.10 and 339,786.27 is: 468,889.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,699.61 : 844,118.10 = 339,786.27 : x
  2. Step 2: Convert to fraction form
    611,699.61/844,118.10 = 339,786.27/x
  3. Step 3: Cross multiply
    611,699.61x = 844,118.10 × 339,786.27
  4. Step 4: Simplify right side
    611,699.61x = 286,819,740,638.49
  5. Step 5: Solve for x
    x = 286,819,740,638.49/611,699.61
  6. Step 6: Final answer
    x = 468,889.85

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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.