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Finding the Fourth Proportional to 621,412.92, 932,315.22 and 222,044.76

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Solution

The fourth proportional to 621,412.92, 932,315.22 and 222,044.76 is: 333,137.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,412.92 : 932,315.22 = 222,044.76 : x
  2. Step 2: Convert to fraction form
    621,412.92/932,315.22 = 222,044.76/x
  3. Step 3: Cross multiply
    621,412.92x = 932,315.22 × 222,044.76
  4. Step 4: Simplify right side
    621,412.92x = 207,015,709,269.25
  5. Step 5: Solve for x
    x = 207,015,709,269.25/621,412.92
  6. Step 6: Final answer
    x = 333,137.12

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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.