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Finding the Fourth Proportional to 626,235.77, 864,197.61 and 339,753.76

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Solution

The fourth proportional to 626,235.77, 864,197.61 and 339,753.76 is: 468,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,235.77 : 864,197.61 = 339,753.76 : x
  2. Step 2: Convert to fraction form
    626,235.77/864,197.61 = 339,753.76/x
  3. Step 3: Cross multiply
    626,235.77x = 864,197.61 × 339,753.76
  4. Step 4: Simplify right side
    626,235.77x = 293,614,383,945.94
  5. Step 5: Solve for x
    x = 293,614,383,945.94/626,235.77
  6. Step 6: Final answer
    x = 468,855.98

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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.