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Finding the Fourth Proportional to 621,520.40, 932,076.48 and 195,055.40

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Solution

The fourth proportional to 621,520.40, 932,076.48 and 195,055.40 is: 292,519.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,520.40 : 932,076.48 = 195,055.40 : x
  2. Step 2: Convert to fraction form
    621,520.40/932,076.48 = 195,055.40/x
  3. Step 3: Cross multiply
    621,520.40x = 932,076.48 × 195,055.40
  4. Step 4: Simplify right side
    621,520.40x = 181,806,550,636.99
  5. Step 5: Solve for x
    x = 181,806,550,636.99/621,520.40
  6. Step 6: Final answer
    x = 292,519.04

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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.