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Finding the Fourth Proportional to 415,839.63, 573,717.74 and 339,226.29

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Solution

The fourth proportional to 415,839.63, 573,717.74 and 339,226.29 is: 468,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,839.63 : 573,717.74 = 339,226.29 : x
  2. Step 2: Convert to fraction form
    415,839.63/573,717.74 = 339,226.29/x
  3. Step 3: Cross multiply
    415,839.63x = 573,717.74 × 339,226.29
  4. Step 4: Simplify right side
    415,839.63x = 194,620,138,751.25
  5. Step 5: Solve for x
    x = 194,620,138,751.25/415,839.63
  6. Step 6: Final answer
    x = 468,017.29

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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.