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Finding the Fourth Proportional to 355,302.90, 532,781.55 and 197,363.70

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Solution

The fourth proportional to 355,302.90, 532,781.55 and 197,363.70 is: 295,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,302.90 : 532,781.55 = 197,363.70 : x
  2. Step 2: Convert to fraction form
    355,302.90/532,781.55 = 197,363.70/x
  3. Step 3: Cross multiply
    355,302.90x = 532,781.55 × 197,363.70
  4. Step 4: Simplify right side
    355,302.90x = 105,151,737,999.74
  5. Step 5: Solve for x
    x = 105,151,737,999.74/355,302.90
  6. Step 6: Final answer
    x = 295,949.56

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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.