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Finding the Fourth Proportional to 352,713.40, 529,415.70 and 175,420.60

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Solution

The fourth proportional to 352,713.40, 529,415.70 and 175,420.60 is: 263,302.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,713.40 : 529,415.70 = 175,420.60 : x
  2. Step 2: Convert to fraction form
    352,713.40/529,415.70 = 175,420.60/x
  3. Step 3: Cross multiply
    352,713.40x = 529,415.70 × 175,420.60
  4. Step 4: Simplify right side
    352,713.40x = 92,870,419,743.42
  5. Step 5: Solve for x
    x = 92,870,419,743.42/352,713.40
  6. Step 6: Final answer
    x = 263,302.78

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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.