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Finding the Fourth Proportional to 353,440.80, 529,383.60 and 314,042.40

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Solution

The fourth proportional to 353,440.80, 529,383.60 and 314,042.40 is: 470,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,440.80 : 529,383.60 = 314,042.40 : x
  2. Step 2: Convert to fraction form
    353,440.80/529,383.60 = 314,042.40/x
  3. Step 3: Cross multiply
    353,440.80x = 529,383.60 × 314,042.40
  4. Step 4: Simplify right side
    353,440.80x = 166,248,896,264.64
  5. Step 5: Solve for x
    x = 166,248,896,264.64/353,440.80
  6. Step 6: Final answer
    x = 470,372.68

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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.