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Finding the Fourth Proportional to 447,691.50, 618,339.15 and 296,526.06

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Solution

The fourth proportional to 447,691.50, 618,339.15 and 296,526.06 is: 409,553.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,691.50 : 618,339.15 = 296,526.06 : x
  2. Step 2: Convert to fraction form
    447,691.50/618,339.15 = 296,526.06/x
  3. Step 3: Cross multiply
    447,691.50x = 618,339.15 × 296,526.06
  4. Step 4: Simplify right side
    447,691.50x = 183,353,671,893.25
  5. Step 5: Solve for x
    x = 183,353,671,893.25/447,691.50
  6. Step 6: Final answer
    x = 409,553.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.