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Finding the Fourth Proportional to 482,862.20, 724,005.30 and 296,007.80

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Solution

The fourth proportional to 482,862.20, 724,005.30 and 296,007.80 is: 443,835.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,862.20 : 724,005.30 = 296,007.80 : x
  2. Step 2: Convert to fraction form
    482,862.20/724,005.30 = 296,007.80/x
  3. Step 3: Cross multiply
    482,862.20x = 724,005.30 × 296,007.80
  4. Step 4: Simplify right side
    482,862.20x = 214,311,216,041.34
  5. Step 5: Solve for x
    x = 214,311,216,041.34/482,862.20
  6. Step 6: Final answer
    x = 443,835.15

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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.