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Finding the Fourth Proportional to 353,256.80, 529,107.60 and 313,858.40

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Solution

The fourth proportional to 353,256.80, 529,107.60 and 313,858.40 is: 470,096.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,256.80 : 529,107.60 = 313,858.40 : x
  2. Step 2: Convert to fraction form
    353,256.80/529,107.60 = 313,858.40/x
  3. Step 3: Cross multiply
    353,256.80x = 529,107.60 × 313,858.40
  4. Step 4: Simplify right side
    353,256.80x = 166,064,864,763.84
  5. Step 5: Solve for x
    x = 166,064,864,763.84/353,256.80
  6. Step 6: Final answer
    x = 470,096.72

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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.