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Finding the Fourth Proportional to 456,233.20, 685,516.20 and 404,911.60

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Solution

The fourth proportional to 456,233.20, 685,516.20 and 404,911.60 is: 608,402.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,233.20 : 685,516.20 = 404,911.60 : x
  2. Step 2: Convert to fraction form
    456,233.20/685,516.20 = 404,911.60/x
  3. Step 3: Cross multiply
    456,233.20x = 685,516.20 × 404,911.60
  4. Step 4: Simplify right side
    456,233.20x = 277,573,461,367.92
  5. Step 5: Solve for x
    x = 277,573,461,367.92/456,233.20
  6. Step 6: Final answer
    x = 608,402.59

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1.5x scale

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.