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Finding the Fourth Proportional to 466,846.12, 643,348.74 and 339,319.72

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Solution

The fourth proportional to 466,846.12, 643,348.74 and 339,319.72 is: 467,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,846.12 : 643,348.74 = 339,319.72 : x
  2. Step 2: Convert to fraction form
    466,846.12/643,348.74 = 339,319.72/x
  3. Step 3: Cross multiply
    466,846.12x = 643,348.74 × 339,319.72
  4. Step 4: Simplify right side
    466,846.12x = 218,300,914,319.15
  5. Step 5: Solve for x
    x = 218,300,914,319.15/466,846.12
  6. Step 6: Final answer
    x = 467,607.86

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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.