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Finding the Fourth Proportional to 399,205.52, 598,806.60 and 162,492.08

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Solution

The fourth proportional to 399,205.52, 598,806.60 and 162,492.08 is: 243,737.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,205.52 : 598,806.60 = 162,492.08 : x
  2. Step 2: Convert to fraction form
    399,205.52/598,806.60 = 162,492.08/x
  3. Step 3: Cross multiply
    399,205.52x = 598,806.60 × 162,492.08
  4. Step 4: Simplify right side
    399,205.52x = 97,301,329,951.73
  5. Step 5: Solve for x
    x = 97,301,329,951.73/399,205.52
  6. Step 6: Final answer
    x = 243,737.44

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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.