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Finding the Fourth Proportional to 352,709.40, 529,409.70 and 175,416.60

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Solution

The fourth proportional to 352,709.40, 529,409.70 and 175,416.60 is: 263,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,709.40 : 529,409.70 = 175,416.60 : x
  2. Step 2: Convert to fraction form
    352,709.40/529,409.70 = 175,416.60/x
  3. Step 3: Cross multiply
    352,709.40x = 529,409.70 × 175,416.60
  4. Step 4: Simplify right side
    352,709.40x = 92,867,249,581.02
  5. Step 5: Solve for x
    x = 92,867,249,581.02/352,709.40
  6. Step 6: Final answer
    x = 263,296.78

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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.