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Finding the Fourth Proportional to 455,894.80, 683,230.87 and 354,814.90

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Solution

The fourth proportional to 455,894.80, 683,230.87 and 354,814.90 is: 531,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,894.80 : 683,230.87 = 354,814.90 : x
  2. Step 2: Convert to fraction form
    455,894.80/683,230.87 = 354,814.90/x
  3. Step 3: Cross multiply
    455,894.80x = 683,230.87 × 354,814.90
  4. Step 4: Simplify right side
    455,894.80x = 242,420,490,220.85
  5. Step 5: Solve for x
    x = 242,420,490,220.85/455,894.80
  6. Step 6: Final answer
    x = 531,746.56

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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.