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Finding the Fourth Proportional to 621,704.80, 932,557.20 and 222,358.60

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Solution

The fourth proportional to 621,704.80, 932,557.20 and 222,358.60 is: 333,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,704.80 : 932,557.20 = 222,358.60 : x
  2. Step 2: Convert to fraction form
    621,704.80/932,557.20 = 222,358.60/x
  3. Step 3: Cross multiply
    621,704.80x = 932,557.20 × 222,358.60
  4. Step 4: Simplify right side
    621,704.80x = 207,362,113,411.92
  5. Step 5: Solve for x
    x = 207,362,113,411.92/621,704.80
  6. Step 6: Final answer
    x = 333,537.90

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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.