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Finding the Fourth Proportional to 352,722.40, 529,429.20 and 175,429.60

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Solution

The fourth proportional to 352,722.40, 529,429.20 and 175,429.60 is: 263,316.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,722.40 : 529,429.20 = 175,429.60 : x
  2. Step 2: Convert to fraction form
    352,722.40/529,429.20 = 175,429.60/x
  3. Step 3: Cross multiply
    352,722.40x = 529,429.20 × 175,429.60
  4. Step 4: Simplify right side
    352,722.40x = 92,877,552,784.32
  5. Step 5: Solve for x
    x = 92,877,552,784.32/352,722.40
  6. Step 6: Final answer
    x = 263,316.29

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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.