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Finding the Fourth Proportional to 461,290.80, 691,936.20 and 335,319.60

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Solution

The fourth proportional to 461,290.80, 691,936.20 and 335,319.60 is: 502,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,290.80 : 691,936.20 = 335,319.60 : x
  2. Step 2: Convert to fraction form
    461,290.80/691,936.20 = 335,319.60/x
  3. Step 3: Cross multiply
    461,290.80x = 691,936.20 × 335,319.60
  4. Step 4: Simplify right side
    461,290.80x = 232,019,769,809.52
  5. Step 5: Solve for x
    x = 232,019,769,809.52/461,290.80
  6. Step 6: Final answer
    x = 502,979.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.