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Finding the Fourth Proportional to 621,806.50, 932,710.02 and 222,423.40

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Solution

The fourth proportional to 621,806.50, 932,710.02 and 222,423.40 is: 333,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,806.50 : 932,710.02 = 222,423.40 : x
  2. Step 2: Convert to fraction form
    621,806.50/932,710.02 = 222,423.40/x
  3. Step 3: Cross multiply
    621,806.50x = 932,710.02 × 222,423.40
  4. Step 4: Simplify right side
    621,806.50x = 207,456,533,862.47
  5. Step 5: Solve for x
    x = 207,456,533,862.47/621,806.50
  6. Step 6: Final answer
    x = 333,635.20

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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.