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Finding the Fourth Proportional to 404,395.34, 557,965.87 and 247,191.60

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Solution

The fourth proportional to 404,395.34, 557,965.87 and 247,191.60 is: 341,063.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,395.34 : 557,965.87 = 247,191.60 : x
  2. Step 2: Convert to fraction form
    404,395.34/557,965.87 = 247,191.60/x
  3. Step 3: Cross multiply
    404,395.34x = 557,965.87 × 247,191.60
  4. Step 4: Simplify right side
    404,395.34x = 137,924,474,486.53
  5. Step 5: Solve for x
    x = 137,924,474,486.53/404,395.34
  6. Step 6: Final answer
    x = 341,063.47

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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.