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Finding the Fourth Proportional to 618,615.60, 927,469.32 and 197,648.88

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Solution

The fourth proportional to 618,615.60, 927,469.32 and 197,648.88 is: 296,328.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,615.60 : 927,469.32 = 197,648.88 : x
  2. Step 2: Convert to fraction form
    618,615.60/927,469.32 = 197,648.88/x
  3. Step 3: Cross multiply
    618,615.60x = 927,469.32 × 197,648.88
  4. Step 4: Simplify right side
    618,615.60x = 183,313,272,332.36
  5. Step 5: Solve for x
    x = 183,313,272,332.36/618,615.60
  6. Step 6: Final answer
    x = 296,328.24

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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.